The Culham Centre for Fusion Energy (CCFE) is partnering with a group of leading universities to advance understanding of one of the hottest topics in fusion research: turbulence in tokamak plasmas.

The £5 million-plus research program, funded by the Engineering and Physical Sciences Research Council (EPSRC), will be led by a consortium of universities with a strong fusion focus—York, Oxford, Strathclyde and Warwick—and will work in partnership with Culham.

A tokamak operates by using a strong magnetic field to hold the hot fusion fuel—which is in the plasma state—away from the reactor walls. In practice the plasma in tokamak experiments is highly turbulent, and this turbulence increases the loss of heat and particles, degrading the fusion performance. If the turbulence can be reduced, this could open the way to more compact or higher fusion power reactors.

As part of the new initiative, scientists will study how well the magnetic field can confine the plasma in CCFE's new MAST Upgrade spherical tokamak. They will also seek to shed further light on the properties of an insulating region that exists at the edge of most tokamak plasmas, including JET, called the pedestal region. This narrow region suppresses the loss of heat and fuel from the plasma, helping to raise the core pressure closer to fusion conditions. The more insulating the pedestal, the higher the central plasma pressure.

Read the full article on the CCFE website here.

--The MAST Upgrade control room (SMD Photography)

At the core of ITER's neutral beam heating system is a novel high-frequency ion source that has been under development for years at the Max Planck Institute for Plasma Physics (IPP) in Garching, Germany. In recent results that are significant for ITER, IPP's ELISE test rig has achieved the ion current required by ITER in hydrogen for 1,000 seconds.

Neutral beam injection relies on high-speed, high energy atoms that penetrate deep into the plasma and transfer their energy to plasma particles by means of collision. The large plasma volume at ITER will impose new requirements on this proven method of injection: the particles will have to move three to four times faster than in previous systems in order to penetrate far enough into the plasma, and at these higher rates the positively-charged ions become difficult to neutralize.

At ITER, for the first time, a negatively-charged ion source has been selected, based on the development of several generations of prototype negative ion sources at IPP.

Since 2009 IPP's ELISE test rig—half the size of what is projected for ITER—has been a valuable source of experimental data as it has advanced step by step to new orders of magnitude. In the most recent report, ELISE was able to produce a stable, homogenous negative ion beam for 1,000 seconds at ITER current strength.

In addition to further work on ELISE, IPP will be collaborating with teams at ITER's Neutral Beam Test Facility, where the full-scale ITER-scale negative ion source SPIDER was commissioned earlier this year.

Read the full report on the website of the Max Planck Institute for Plasma Physics.

Fusion in Europe's second edition this year is filled to the brim with interesting articles. Take the report about the latest experiment at the Dutch Institute for Fundamental Energy Research (DIFFER). Their linear plasma generator Magnum-PSI has set a new record for the longest exposure of any material to the harsh plasma conditions in a fusion device.

A high vacuum is crucial for the fusion reaction to take place —Fusion in Europe spoke to German supplier Lybold about how they deliver custom-made vacuum solutions to Europe's fusion devices, including ITER.

"Now is the best time to be at JET," says Eva Belonohy who contributes to preparations for the second deuterium-tritium campaign at JET in over 20 years, planned for 2019 and 2020. She organized a recent workshop for fusion scientists, to share JET's latest features such as its enhanced heating powers and diagnostics or its ITER-like wall made of beryllium and tungsten.

The latest edition of Fusion in Europe also includes a report from the recent inauguration of SPIDER, the largest ion beam source in the word, in Padova, Italy; introduces award-winning young fusion expert Wei Zhang; and shows an example of how the enthusiasm for fusion can be passed on from one generation to the next within one family.

To read the current edition of Fusion in Europe click here.

Summit, the world's fastest supercomputer recently launched at the Oak Ridge National Laboratory (ORNL) in the US, will be instrumental in accelerating fusion research.

The new supercomputer takes computing powers to new heights. Summit can perform 200 petaflops per second: that is 200 quadrillion calculations, eight times more than the previous record-holder at ORNL, Titan. The massive machine—weighing more than a commercial aircraft—is also the world's largest computer equipped with artificial intelligence ... a machine whose software will write new software.

Harnessing Summit's capabilities in machine learning and simulation as well as in artificial intelligence and deep learning will allow researchers to accelerate scientific discovery in many fields, including fusion. 

For more information on Summit read the ORNL news release here and the NVIDIA blog post here.

What do Anna, Margaret, Aneeqa, Natalia, Sarah, Kat and Karina have in common?

All these women are engineers who are contributing to ITER by working on exciting issues such as building the ion cyclotron antenna, designing and manufacturing the divertor, reducing the risk of beryllium exposure to future workers, or modelling material migration.

For the first time this year, the ITER community joined in to mark the International Women in Engineering Day on 23 June. You can find out more about ITER's women engineers in the Twitter feed of the ITER Women's Network.

The day was launched as a national day by the Women's Engineering Society in the United Kingdom in 2014 to celebrate its 95th anniversary. Due to a high level of  response, interest and enthusiasm, the event turned international in 2017 and received UNESCO patronage in 2016 and again in 2018.

The International Women in Engineering Day is now an international awareness campaign to raise the profile of women in engineering and related sciences. By celebrating the achievements of women in this field, the annual event seeks to inspire young women to consider a career in engineering.

Find out more here.

--Anneqa Khan is a mechanical engineer in ITER's Science Division, working on modelling material migration and fuel retention.

India plans to reboot its steady state superconducting tokamak, SST-1, on time to be showcased at the upcoming IAEA Fusion Energy Conference, reports the media platform The Better India.

Commissioned at the Institute for Plasma Research in 2013, the SST-1 experiment has produced plasma discharges up to ~ 500 ms. Experiments were halted after some small damage was detected in the tokamak's toroidal magnet system in December 2017.

Organized from 22 to 27 October 2018 by the Government of India in Ahmedabad, Gujarat, the 27th IAEA Fusion Energy Conference will be one of the year's highlights for the world fusion community, providing a platform for discussions around key physics and technology issues in fusion research.

Read about SST-1 on the website of "The Better India."

Find more about the 27th IAEA Fusion Energy Conference (or pre-register online) here.

In terms of local recruitment needs, the ITER Project is at an exceptional junction. At the same time as European Domestic Agency civil works contractors remain active on site, the ITER Organization is beginning to issue contracts related to the assembly and installation of components and systems inside of the completed buildings and technical areas.

All of these main contractors have employment offers to fill in a variety of areas. At a recruitment fair held on 14 June more than 500 jobs were on offer, as companies advertised for foremen, engineers, security specialists, welders, boilermakers, pipe-fitters, mechanics, shift supervisors, draftsmen and women, maintenance technicians and more.

If you live locally, you can see the full list of recruitment offers here.

The recruitment fair—advertising different types of French employment contracts—is organized annually by the Saint-Paul-lez-Durance employment association with the support of seven municipalities. For assignments at the ITER Organization, as directly employed staff, please see the ITER Organization website.

The International Atomic Energy Agency (IAEA) has issued a challenge for data specialists from around the world to submit innovative ways to visualize, analyze and explore simulations of different materials that can be used to build fusion reactors.

Experts and self-taught enthusiasts are invited to analyze simulations of the damage that can be caused to the reactor wall by the energetic neutrons released by the fusion reaction. The contest leaves the nature of the software solutions open to enable novel approaches, but one or more of the following can be considered:

• Novel software for visualizing the material damage represented by the simulation data files in a way that aids its qualitative and quantitative assessment;
• New software tools to rapidly and reliably identify, classify and quantify new patterns and structures of particular kinds in the data sets;
• Efficient algorithms to depict and summarize the statistical distribution of atom displacements and to analyze the effect of impact energy on this distribution.

Deadline for submission is 14 July 2018. The winner will be awarded with €5,000 and invited to the IAEA Headquarters in Vienna to present his or her ideas.

See the original article as well as detailed information about the challenge on the IAEA website.

In the latest episode of the science and engineering podcast series Omega Tau, producer Markus Völter speaks with Pierre Bauer, a superconductor engineer at ITER, about superconductivity and its uses.

The listener is first taken back in time to hear about the discovery of superconductivity in 1911, when scientists were trying to liquefy helium in their quest to understand the behavior of metals at very low temperatures. Today, superconductivity is associated with the high-performance magnets used in nuclear fusion reactors, in particle colliders, for magnetic levitation in modern train systems, and also for medical magnetic resonance imaging.

Superconductivity was first observed in mercury; since then, research has resulted in the identification of better materials for low-temperature conductors such as niobium, which is used in ITER's niobium-titanium and niobium-tin superconductors.

Völter and Bauer touch on many more issues related to superconductivity in this episode that lasts almost three hours. It is not the first time that ITER has featured prominently in the podcast series. In October 2014, Omega Tau spoke with ITER's Richard Pitts on the physics and the engineering challenges of the project.

Listen to the podcast with Pierre Bauer here.

Listen to the podcast with Richard Pitts here.

 

One of the most flexible and highly instrumented fusion research reactors in the world is undergoing major enhancements that will pave the way to future fusion power plants.

The DIII-D National Fusion Facility is the largest magnetic fusion experiment in the United States. In May, work began on a series of machine enhancements that will make it possible to commence new studies of the physics of future fusion reactors. That will help scientists understand how to achieve high fusion power in the ITER and how to sustain such regimes indefinitely in the fusion power plants that will follow ITER.

The planned year-long activity will enhance DIII-D systems by adding increased and redirected particle beams and radio frequency systems to drive current and sustain the plasma in a so-called "steady state." The improvements will also expand capabilities with the installation of new microwave systems to explore burning-plasma-like conditions with high electron temperatures. This will allow researchers to explore how to achieve higher pressure and temperatures while increasing control of the plasma, conditions critical to sustained fusion operation.

See the recent press release on the General Atomics website.

Scientists at Oxford University, in collaboration with the University of California Santa Barbara, are studying the impact of radiation on the properties of materials. Through their research, they hope to contribute to developing better, more resilient materials for nuclear fusion.

See this animation by Oxford Sparks to get an insight into how it is done.

Are you a university graduate in the field of nuclear engineering, physics, administration or communication? Do you want to put your academic experience into practice at ITER, the most ambitious international energy project? Then this traineeship may be for you. The European Domestic Agency for ITER is looking for physicists, engineers, lawyers, communicators and experts in human resources, finance and procurement who are interested in hands-on experience in an exciting international and multicultural environment.

The traineeship is paid and will last from between four to nine months starting in October 2018 at any of the three locations: Barcelona, Spain; ITER site (France); or Garching, Germany. The deadline for applications is 25 June 2018.

For more information and a complete list of opportunities click here.

Are you a writer or an artist interested in fusion? Then the latest call of EUROfusion, the European consortium of national fusion research institutes, may be something for you. For the third time, EUROfusion invites creative minds to be inspired by all things fusion. Choose any of the eight provided topics and let your creativity on the loose. Winners will have their work published in the autumn edition of the magazine Fusion in Europe.

The eight topics include fusion as a must-have in the future energy mix; fusion as a benefit for you, us and society; fusion as a melting pot for different scientific fields; fusion as a driver of innovation, and a few others questions.

Consult EUROfusion to see all topics and more information on how to participate in this call. The deadline for the submission of proposals is 25 June.

"Clean Energy for all Europeans" is the theme of this year's Sustainable Energy Week. Over 3,000 politicians, stakeholders, civil society representatives and the media will gather in Brussels from 4-8 June to share ideas and look for solutions to address Europe's future energy needs. The ITER Project, which aims at complementing, globally, renewable energy sources with clean, safe and abundant fusion energy, is the focus of an afternoon session on 7 June.

Titled "ITER and fusion: towards a new source of energy on Earth," the event is specifically geared towards the interested non-specialist public. Representatives of the European Commission, ITER, EUROfusion and Fusion for Energy will introduce ITER as one of the most important global energy projects, its vital role in securing mankind's future energy supply and the current status of its construction.

A wide range of events, meetings and activities provide many occasions to get updates on matters related to sustainable energy including e-mobility, energy transition in urban spaces, innovative technology and energy efficiency for industry. At the networking village visitors can enjoy an energy fair, energy talks on topics related to the clean energy transition and an energy lab where ten projects will pitch in front of a panel of experts.

For more information on the Sustainable Energy Week, and to register, please visit the website.

The first plasma pulse for almost 18 months took place inside of the JET tokamak in early May.

The machine—the largest and most powerful tokamak in operation today—has been undergoing a revamp to act as a testbed for ITER technologies and plasma operating scenarios. JET is now equipped with an ITER-like beryllium and tungsten wall to study material-plasma interactions, additional heating power, and the ability to handle tritium. Experiments with tritium at JET—the first since the 1990s—will act as an important "dress rehearsal" in preparation for fusion operation at ITER.

Although not a full fusion plasma, achieving the 1.2 mega amp pulse is a key part of completing the JET restart and getting ready for further commissioning of the machine. The first experiments are expected to take place this year.

Read the full article on the Culham Centre for Fusion Energy's website.

Steven Cowley, a theoretical physicist and international authority on fusion energy, has been named director of the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL), effective July 1.

Cowley has served as president of Corpus Christi College and professor of physics at the University of Oxford since 2016. From 2008 through 2016, he was chief executive officer of the United Kingdom Atomic Energy Authority (UKAEA) and head of the Culham Centre for Fusion Energy, which includes the Joint European Torus (JET) and Mega Amp Spherical Tokamak (MAST) fusion facilities.

During his tenure at Culham, Cowley expanded and strengthened relations with other fusion programs in Europe and around the world, and served in key advisory roles for the U.K., U.S. and European governments.

As director of PPPL, Cowley will be responsible for managing all aspects of the laboratory, including its performance in science, engineering, operations, project management and strategic planning. He will lead PPPL's scientific and technical programs in fusion energy science and technology, as well as broader investigations in plasma science, and provide leadership to the U.S. and world fusion energy efforts.

 Read the original article on the PPPL website.

San Diego-based General Atomics (GA) has published a new app to help physicists work out the characteristics of plasmas on the fly. Called Plasmatica, it takes up to seven basic input parameters—ranging from magnetic field to electron temperature to ion mass factor—and outputs many fundamental properties of the plasma. The parameters are helpful to researchers because they describe intrinsic plasma behaviors, e.g., how often particles will collide with each other.

"Before this, most of us just would have written a little program on our computers to do these calculations, and in fact a bunch of us have them," said David Pace, the GA physicist who spurred the development of Plasmatica. "We thought it would be nice to give back to the research community by creating a standardized app that everyone can use when they're not at their computers. It's been exciting to get some initial feedback that is guiding us to a new round of improvements."

GA operates the DIII-D National Fusion Facility, the largest magnetic fusion facility operating in the U.S. and a world-renowned research center for plasma physics. Research time on DIII-D is extremely valuable—the facility can accept only about one out of every five experimental proposals—so having those calculations accessible on a mobile device can save precious minutes when researchers are trying to line up the next experiment.

The app, which incorporates two formularies commonly used by plasma physicists, has been tested by researchers and is getting solid reviews. Plasmatica is available for free in both the Android and Apple app stores.

The first Fusion in Europe of 2018 has been released. This quarterly magazine, published by the European consortium EUROfusion, keeps readers abreast of the faces, facilities and feats of the very dynamic fusion research community in Europe.

The latest issue offers articles on the experimental campaign underway at WEST (France), the 3D printing of small tungsten components, and plans for a neutron source oriented to DEMO (the machine after ITER).

You can read or download Fusion in Europe here.  

The Swiss Plasma Center at the École polytechnique fédérale de Lausanne (EPFL) has updated its Massive Open Online Courses (MOOC) on plasma physics. Both courses are taught by renowned experts in the field and offer participants the opportunity to acquire basic knowledge about plasma physics and its applications.

Through four-week course on plasma physics you will acquire: a basic knowledge of plasma physics and the different models used to describe plasmas; an understanding of how to numerically simulate complex plasma dynamics; and a basic introduction to MATLAB programming through introductory videos and exercises.

The second, five-week course covers plasma physics applications in astrophysics, industry, medicine, nuclear fusion and laser-plasma interaction, and aims to highlight the challenge of developing fusion as an energy source, plasma applications in society, and the importance of plasma in space and astrophysics.

Visit the Swiss Plasma Center website for more information. Enrolment is continuous. 

ITER will procure the tritium fuel necessary for its expected 20-year lifetime from the global inventory. But for DEMO, the next step on the way to commercial fusion power, no sufficient external source of tritium exists. The successful development of tritium breeding—that is the generation within the fusion reactor of tritium fuel—is essential for the future of fusion electricity.

ITER will provide a unique opportunity to test mockups of breeding blankets, called Test Blanket Modules (TBM), in a real fusion environment. Six different tritium breeding concepts will be tested in dedicated ''ports'' in the ITER vacuum vessel.

Development is underway on two European test blanket systems for ITER. As part of the program, the European Domestic Agency is collaborating with Spanish firms CIEMAT and Empresarios Agrupados on a computer code that will predict the transport of tritium through the different components and materials of the test blanket system in ITER. Findings will contribute to the design of a breeding blanket for tritium self-sufficiency in DEMO.

Read the full article on the European Union Domestic Agency website.

--I.Ricapito manages the development of the computing code used to predict the tritium transport in the European test blanket systems.

All the steel material needed for the fabrication of the five European-procured sectors of the ITER vacuum vessel sectors has now been received by the European consortium. Five sub-contractors participated in the delivery of the latest batch—Acciaierie Valbruna (Italy), Forgiatura A. Vienna (Italy), Industeel (France), Rolf Kind GmbH (Germany) and ThyssenKrupp (Germany).

In all, vacuum vessel fabrication in Europe has required 1,120 tonnes of plates and 1,900 tonnes of forgings (metal blocks formed into various shapes through hot pressing techniques). A special grade of high quality stainless steel—exceptionally strong, corrosion-resistant, and weldable—has been chosen for this critical ITER component.

Read the full report on the European Domestic Agency website.

Representative Lamar Smith, Chair of the House Science, Space and Technology Committee*, has penned a recent op-ed in RealClearPolicy that urges US policy makers to uphold its commitment to ITER and to fully fund the fusion research program at the Department of Energy.

"To maintain America's global standing as the leader in science, we must meet our international commitments and support this basic research that will lead to transformative clean energy technologies."

Underfunding ITER, which he describes as a "critical step on the path to achieving commercial fusion energy," would jeopardize American leadership in fusion science. "...We cannot afford to lose our seat at the table. Nor can we expect to receive international support for our domestically built projects if we do not honour our international obligations."

Read the full op-ed here.

* The House Science, Space and Technology Committee oversees the Department of Energy's Office of Science, which includes the Fusion Energy Sciences program.

The Satellite Tokamak Program, JT-60SA, is a major modification of the existing JT-60U tokamak at the Naka Fusion Institute in Japan. Designed to support ITER, and to investigate how best to optimize the design and operation of fusion power plants built after ITER, the project is part of the Broader Approach Agreement signed between Japan and Euratom. First Plasma is planned in 2020.

Advanced assembly of the modified tokamak is underway now. The last vacuum vessel sector, pre-assembled with toroidal field coils and thermal shielding, was recently installed to complete the 360-degree torus.

See photos of the operation on the European Domestic Agency website.

Every year, the Plasma Physics Division of the European Physical Society (EPS) grants up to four prizes to young scientists from the 38 EPS member states. The prize, which was created in 2005, is awarded for outstanding research achievements associated with PhD studies in the field of plasma physics. 

This year's four winners will be honoured during the opening ceremony of the 45th Conference on Plasma Physics, EPS 2018, which takes place in Prague, Czech Republic, from 2-6 July. In addition, the prize winning young physicists are given the opportunity to present their work at the conference.

One of last year's winners, Toon Weyens, is currently working at ITER under the Principality of Monaco/ITER Postdoctoral Fellowship program which supports fusion-related research efforts of early-career scientists. Weyens received the prestigious EPS PhD award in 2017 for his study of a key aspect of toroidal plasma stability, the effects of non-axisymmetric fields on peeling-ballooning stability.

A group of young fusion enthusiasts seems to be the first who managed to put the Sun in a box. In this case, though, the box is quite literal ... and contains a board game they invented to make learning about ITER easy and entertaining.

What will the ITER Tokamak weigh? What is the function of the breeding blankets? And at what temperature does the fusion reaction take place? Players are meant to work in teams to advance in this ITER version of Trivial Pursuit by answering these kinds of questions.

Just like with the original Trivial Pursuit, there are several categories of questions: design and technical aspects; thermonuclear physics; manufacturing and construction; safety, quality, security and regulations; project management; and general issues. Correctly answered questions are rewarded with small plastic tokens representing key structural components of the ITER machine.

As the game progresses, players collect the components to assemble a small 3D-printed model. The team that first completes its mini tokamak wins the game. And along the way all players gain a basic understanding of nuclear fusion and the ITER Project.

The board game was developed by a group of employees from Assystem, one of the companies in the consortium ENGAGE, the architect/engineer for ITER construction. Calling themselves Young Generation Fusion, they want to raise awareness about fusion energy and ITER by creating projects that attract the attention of a wide audience.

In April, they had the chance to present ITER Director-General Bernard Bigot with a copy of "Sun in a Box." They also present their creations at trade fairs and conferences.

--From left to right, Young Generation Fusioneers Eric Kruger, Clarisse Thouzeau, Guillaume Merriaux-Mansart and Gregory Thibault (Sebastien Lonjon and Camille Taberlet are not shown).

The 55th Culham Plasma Physics Summer School is open to applications.

The school will cover fundamental plasma physics, as well as important topics in fusion, astrophysical, laser and low temperature plasmas. Lecturers are drawn from the Culham Centre for Fusion Energy (CCFE), the Rutherford Appleton Laboratory (RAL) together with leading European universities. All are renowned experts in their fields.

For more details and to apply please visit: https://culhamsummerschool.org.uk/

Discount for early registrations before 15 May.

The deadline for applications is 25 May.

Australian-born physicist Peter Thonemann died on 10 February 2018 at the age of 100. Thonemann was the leader of the ZETA fusion project when in 1958 it was famously—and wrongly—declared that it had achieved nuclear fusion.

Thonemann, whose family descended from German emigrants, was born in 1917 in Melbourne, Australia. To pursue an academic career in physics, he moved to Oxford, England, in 1944 and became one of the early researchers in nuclear fusion. As head of fusion research at Oxford and later at Harwell, England, Thonemann played a key role in the Zeta fusion project at the time when it made international headlines.

In January 1958, the announcement that the Zeta toroidal fusion device had achieved nuclear fusion was greeted with great enthusiasm. Less than four months later, the British scientists leading the project had to retract their earlier pronouncements. Although fusion research initially suffered from this setback, the Zeta episode helped drive the secrecy out of nuclear fusion research and create the foundation for scientific cooperation in this field across national boundaries. (See also the recent Newsline article on the Zeta affair)

Thonemann moved on to become deputy director of the Culham Laboratory in the mid-1960s, today home of JET, the Joint European Torus. A few years later, in 1968, he became professor for physics at what is today the University of Swansea, Wales. Late in life, Thonemann turned his scientific curiosity to biology and conducted research on the E. coli bacterium.

Please read the full obituary of The Sydney Morning Herald here.

Taiyô Tenno is a young Japanese student on a world tour of "art masterpieces"; Soléane is "a scientist at heart," presumably French, who speaks perfect Japanese. They meet at Cézanne's workshop in Aix-en-Provence and soon find themselves seated at the terrace of Les Deux Garçons, the town's most elegant café.

Soléane speaks Japanese because her work in "energy research" implies a lot of "professional dealings with Japan." Taiyô Tenno is impressed, especially when Soléane explains that her work is about "duplicating the energy-generating process in the Sun and stars"...

The first manga on ITER—"A small sun on Earth"—has just been published by ITER Japan and is available in Japanese, French and English.

Visit this website to download the manga.

The International Zvenigorod Conference on Plasma Physics and Controlled Fusion is an annual rendezvous near Moscow for fusion research specialists from Russia and abroad. For one week in April, recent achievements in high and low temperature plasma research, the field of controlled fusion, and the development of plasma and beam technologies are presented through lectures, short talks and poster presentations.

Russian participation in the ITER Project was reported at the "ITER Project: Step to future energy" portion of the program under the direction of Anatoly Krasilnikov, director of the Russian Domestic Agency. Representatives of the research centres and the industrial companies involved in the procurement of ITER systems and components were present to report on the challenging technical specifications of the packages under Russian responsibility and the benefits of participation in ITER for the Russian research infrastructure overall.

More on the annual conference here.

--ITER Russia

Drawing inspiration from the robotic tasks that will be faced at ITER during installation and maintenance activities, the annual ITER Robots contest challenges students of different ages to imagine, design, and program Lego robots. Launched in 2012 by Agence Iter France and the ITER Organization, the program is growing every year.

As Newsline reported last June, the 2017 ITER Robots competition involved 600 students from 27 schools organized into 46 teams. This year, the competition will expand to about 70 teams and also offer a new program—ITER Robots Junior—for primary age students in 4th, 5th and 6th grade (12 additional teams). And who better to help design the new junior competition than 14-year-old Camylle Jordan, who spent one week as an intern in ITER's Remote Handling Section.

According to Jean-Pierre Martins, the ITER remote handling engineer who supervised Camylle, "she solved every issue she encountered in a pragmatic manner." In addition to becoming familiar with the complexity of the ITER Project, Camylle had to adapt her programming skills to work with a Thymio robot and to learn the basics of SolidWorks ®, a Computer Assisted Design tool.

The young intern left the ITER engineers impressed with her efficiency and confidence. She successfully tested the proposed curriculum and competition design, proactively suggesting and demonstrating ways to improve the robot mission. She participated in the official kick-off meeting of the ITER Robots Junior challenge, interacting with people from ITER, Agence Iter France and the French education system (Education Nationale). And she found time to fit in a tour of the ITER worksite and virtual reality room, and to give an on-camera Facebook interview to student journalists.

Most importantly, she documented her progress systematically, keeping a logbook of written records, photos, and videos, to ensure the contribution of her workweek at ITER would not be lost.

Bernard Bigot, Director-General of the world's biggest nuclear fusion project, tells Brussels-based Science|Business the perpetually out-of-reach energy source is finally in sight—so long as Trump does not scale back US involvement.

Read the article published on 15 March here.

A research team at Princeton University has succeeded in significantly improving the quality of disruption predictions for a plasma in a tokamak fusion device through deep learning.

The team led by plasma physicist William Tang had access to the database of the Joint European Torus (JET) tokamak to demonstrate the potential of deep learning and neural networks in the analysis of large amounts of plasma disruption data. They fed more than a half-petabyte of information into their fusion recurrent neural nets (FRNN) deep learning software.

Through GPU-accelerated computing—i.e., the use of a graphic processing unit together with a CPU—disruption prediction improved dramatically in accuracy and speed. The Princeton team also demonstrated the scalability to over thousands of even more advanced GPUs.

According to Tang, this development holds a huge potential for accelerating scientific discovery through deep learning for fusion research.

Read the full article here.

The Massachusetts Institute of Technology (MIT) has just released plans for a number of initiatives that will broaden its engagement in fusion research.

MIT has been a long-standing player in fusion research, receiving support primarily from the US Department of Energy that has included funding in three major experiments at MIT's Plasma Fusion and Science Center (PFSC). The last of these—the Alcator C-Mod tokamak—ended operations in 2016 after 23 years and approximately 33,000 plasma shots.

Now, in a renewed approach, researchers at MIT will be working with a newly formed company, Commonwealth Fusion Systems, to combine the experience of a well-established lab with the more nimble and longer-term financing perspectives from the private sector.

Commonwealth Fusion Systems is an independent, for-profit company created by former MIT staff and students for the accelerated commercialization of fusion energy.

Joint teams will be working to develop a new class of high temperature superconducting magnets, followed by the conception and construction of a compact 100 MW fusion experiment called SPARC, and finally a larger demonstration power plant. 

Commonwealth Fusion Systems has obtained $50 million in funding from the Italian energy company Eni, which is also a founding member of the MIT Energy Initiative (MITEI). Eni has also announced funding to the order of $2 million per year for PSFC's newly created Laboratory for Innovation in Fusion Technologies, which will focus on cutting-edge solutions for some of the challenges on the road to a steady-state fusion reactor.

Read more about the new initiatives on the MIT website.

If your PhD was awarded after 1 January 2015—or you are about to obtain one—you are eligible to apply for a Monaco/ITER Postdoctoral Fellowship.

The Fellowship Program is recruiting now for two-year terms beginning autumn 2018.

Since 2008, 25 young scientists and engineers have been able to participate directly in ITER, working on cutting-edge issues in science and technology with some of the leading scientists and engineers in each domain. The principal aim of the Research Fellowships, which are funded by the Principality of Monaco under a Partnership Agreement that was renewed in early 2018, is the development of excellence in research in fusion science and technology within the ITER framework.

The deadline for application is 1 March. All information can be obtained here.

In a recent report in Nuclear Fusion, an international team of researchers outlines an approach for using electron cyclotron heating to control instabilities known as "neoclassical tearing modes" that can cause magnetic islands to grow in, and perturb, the plasma.

Lead physicist Francesca Poli of the Princeton Plasma Physics Laboratory (PPPL) worked with two of her colleagues and researchers from the ITER Organization, the Max Planck Institute for Plasma Physics in Germany, and the Institute of Plasma Physics in Italy, to describe an approach that for the first time simulates the plasma, the magnetic islands and the feedback control from the electron cyclotron waves.

The current from the electron cyclotron waves (see related article in Newsline) has to be matched with the magnetic island. The simulations performed help to determine the maximum misalignment that can be tolerated and under which conditions experiments should be run.

Read the full article on the PPPL website.

An institute created at the Dutch Institute for Fundamental Energy Research (DIFFER) to research remote maintenance technology for ITER has now been spun-off as a separate entity.

The Dutch Remote Handling Study Center (RHSC), founded in 2011 in collaboration with the company Heemskerk Innovative Technology, will continue to carry out tasks for ITER through the European Domestic Agency.

But its experience developing maintenance procedures for ITER components using remotely controlled robots will now be applied to a wider scope of applications, including industrial maintenance and health care.

Read the news on the DIFFER website.

A team led by MIT professor Anne White, Cecil and Ida Green Associate Professor in the Nuclear Science and Engineering Department, and Pablo Rodriguez Fernandez (pictured), a graduate student in the Department of Nuclear Science and Engineering, has conducted studies that offer a new take on the complex physics of plasma heat transport, and point toward more robust models of fusion plasma behaviour. The results of their work appear this week in the journal Physical Review Letters, in which Rodriguez Fernandez serves as first author.

To make fusion energy a reality, scientists must harness fusion plasma, a fiery gaseous maelstrom in which radioactive particles react to generate heat for electricity. But the turbulence of fusion plasma can confront researchers with unruly behaviours that confound attempts to make predictions and develop models. In experiments over the past two decades, an especially vexing problem has emerged: In response to deliberate cooling at its edges, fusion plasma inexplicably undergoes abrupt increases in central temperature.

These counterintuitive temperature spikes, which fly against the physics of heat transport models, have not found an explanation—until now.

Read the detailed account on the website of MIT's Plasma Science and Fusion Center.

"Many basic science discoveries, while important by themselves and foundational in their fields, also yield spinoff applications or enabling technologies not envisioned by the scientists doing the original work. This is what makes investment in science like fusion energy research so powerful—the impact extends well beyond the laboratory."

This statement prefaces a new brochure issued by the US Office of Fusion Energy Sciences (Department of Energy) on the many areas of science and technology—modern electronics, lighting, communication, manufacturing, transportation—that have benefitted directly from research into fusion.

You can download the brochure here.

The chemical element lithium may just have found itself a new application. Scientists at the Princeton Plasma Physics Laboratory (PPPL) and China's Experimental Advanced Superconducting Tokamak (EAST) have found that lithium powder can reduce periodic instabilities in plasma when used to coat tungsten surfaces in fusion devices.

These instabilities are known as edge-localized modes (ELMs) and occur at the outer parts of the fusion plasma. ELMs develop regularly when the plasma enters what is known as high-confinement mode, or H-mode, which holds heat within the plasma more efficiently. ELMs can damage the divertor, a plasma-facing component that extracts heat and ash produced by the fusion reaction, and cause fusion reactions to fizzle.

The researchers also found that it became easier to eliminate ELMs as the experiments progressed, possibly requiring less lithium as time went on.

The results cause physicists to be confident that these techniques could also reduce ELMs in larger fusion devices that were designed to be compatible with lithium.

Read the full article on the PPPL website here.

February at ITER opened with a high-stakes visit from the Committee on A Strategic Plan for U.S. Burning Plasma Research. The Committee, operating under the auspices of the US National Academies of Sciences, Engineering, and Medicine, has been charged with reviewing the overall state of magnetic confinement fusion research in the United States. A key outcome of the review is to be a recommended strategy for going forward—with or without ITER—in a way that preserves the US status as a leader in burning plasma research.

The Committee publicly released its interim report on 21 December 2017.

The main webpage for ITER news has evolved. Follow this address—https://www.iter.org/news—to find all the latest social media posts, announcements, articles, photos and videos.

The page serves as an aggregator; from there you can consult the full archive of press articles on ITER, scroll through photo galleries, dig more deeply into the Newsline archive for a research topic, or click on our live site cam.

Make it your bookmark today!

 

Spain and Croatia have announced they will join forces in preparation to host DONES, the DEMO Oriented Neutron Source facility. The specialized installation will help scientists to test materials in an environment of neutron irradiation similar to that of a demonstration fusion reactor (DEMO), the intermediate step from ITER to a commercial fusion reactor.

A scientific collaboration framework between Japan and Europe—the Broader Approach—is helping to pave the way to DONES by validating key technological concepts. The engineering validation and engineering design activities of IFMIF (the International Fusion Materials Facility) aim at producing a detailed, complete and fully integrated engineering design of fusion-relevant neutron source by validating the continuous and stable operation of prototypes for each IFMIF subsystem.

Research into materials with neutron-resistant properties is one of the key tasks laid out in the European Roadmap, Europe's guiding document to addressing the scientific and technological challenges on the way to adding fusion energy to Europe's future energy mix.

It has not yet been decided where DONES will be located. For Europe, Spain and Croatia have now agreed to propose Granada, Spain, as host. Should this not be possible for technical reasons, the project would be hosted in Moslavačka Gora, Croatia. A technical group of experts from both countries that evaluated both sides declared the Granada site as fully operational and acknowledged that construction works could start immediately.

Read the full article on the European Domestic Agency website.

Two months after the announcement of a £86 million government investment in the UK's nuclear fusion research program, the UK's Atomic Energy Authority (UKAEA) met with more than 80 industry stakeholders on 16 January in Oxford to present opportunities for the nuclear industry to get involved and secure major contracts with ITER.

The government investment will support the UKAEA's plan to build a National Fusion Technology Platform at its Culham Science Centre. The platform will consist of two centres of excellence which, according to the Head of the UKAEA, Ian Chapman, would help in making commercial fusion a reality:

- the Hydrogen-3 Advanced Technology (H3AT) centre to research how to process and store tritium, with a direct link to ITER's development;
- and the Fusion Technology Facilities (FTF) to develop thermal hydraulic tests for components under fusion conditions. 

Both centres open up opportunities for British industry. Partnering with UKAEA will support industry in preparing to bid for forthcoming multi-million-pound ITER contracts. 

Read the full article on the UKAEA website here.

 

 

 

While ITER takes shape, plasma physicists continue searching for answers to some rather tough questions. What causes a plasma to go from a weakly confined, turbulent state to a more defined and calmer state which is necessary for fusion to occur? Answering this question, scientists from the Princeton Plasma Physics Laboratory, the University of California and the Massachusetts Institute of Technology join forces to simulate tokamak plasmas.

With the help of a supercomputer located at the Oak Ridge National Laboratory (ORNL) called Titan, the research team uncovered for the first time the basic physics behind a plasma's transition into the high-confinement or H-mode.

Future simulations will study the transition of a plasma into H-mode at ITER scale. An issue of crucial importance is the right balance between the core temperature of a plasma and the temperature at its edge, which will have an effect on the size of the plasma.

These simulations are of unprecedented scale. Only with such high-performance computing resources such as Titan involving over 18,000 graphic processing units (GPUs) and close to 300,000 central processing units (CPUs), can problems of such great scientific complexity and importance be addressed.

See the full article on the ORNL website here.

 

Early January, ITER's Director-General spoke with Foro Nuclear, the Spanish nuclear industry forum. The exchange covered the challenge of leading a multicultural project, the critical phase ahead as ITER begins assembly activities, and Bernard Bigot's conviction that there is nothing more exciting, more motivating, than contributing to a project that could change the course of civilization for hundreds of thousands of years.

Excerpts below

On managing one of the world's largest research projects:

I accepted the Council's offer at a crucial moment in ITER history, when the project was entering into manufacturing and preparations for assembly. This new phase required a new organization—one tailored to meet the double challenge of delivering an installation that is both a research facility and an industrial facility.  What we needed at that point and need even more today was integration.

ITER is a complex structure, with a central team here in France and seven "domestic agencies" emanating from the seven ITER Members that are responsible for the in-kind procurement of machine components and installation systems. To achieve this integration, we needed a clear, centralized decision-making process under the authority of the Director-General. This being established and accepted by all, we could move on, as "One ITER," to promote and establish a project culture based on shared values of excellence, adherence to commitments, adherence to schedule and budget, and careful and effective use of public funds. And all the while making safety and quality our highest priority.

On striving for excellence in a multicultural environment:

How do we achieve harmony and efficiency? Through mutual respect and the understanding that each culture has its own work habits, traditions and "best practices." However at the end of the day, after well documented debates, decisions have to be taken and implemented by all. The global world we live in has not erased national particularisms. But instead of seeing this as a problem, we see it as an asset: we are building a project culture in a way that takes advantage of the diversity of these "best practices" to achieve an optimal result. 

On considering a job at ITER:

I've often said that, when joining ITER you symbolically abandon your nationality. You become Iternational... Working at ITER is very demanding but it is also very rewarding. Can you think of something more exciting, more motivating, than contributing to a project that can change the course of civilization for hundreds of thousands of years?

On the importance of fusion

My conviction is that in the second half of this century, beyond 2060, we will have accumulated enough knowledge and experience to create a large fusion industry—just like in the past decades we have created an oil, gas or nuclear fission industry. But like with any of these industries, the decision will be both technical and political and rest in the individual governments' and investors' hands.

Follow these links to read the article in English or Spanish.

Bored with the Kardashians? Not interested in your regular TV program? You can now tune in to a new channel that will allow you to follow—in real time!—the construction of the Tokamak Complex.

Streamed from a video camera mounted 60 metres above platform level, the footage gives you an eagle eye's view of the ongoing activities in the Holy of Holies of the ITER Project —day and night, any day, any hour.

Follow this link to the ITER homepage.

On 18 December 2017, the current was raised in the divertor coils and the very first X-point plasma was obtained in the WEST tokamak (France).

The current was raised in limiter configuration up to 500 kA and controlled during a couple of seconds, while the divertor coils entered into action and an ITER-like configuration was reached.

The WEST project consists in transforming the former Tore Supra tokamak in order to extend its long pulse capability and test ITER's divertor technology. The implementation of a full tungsten, actively cooled divertor with plasma-facing units that are representative of ITER's divertor targets will allow scientists and engineers to address the risks both in terms of industrial-scale manufacturing and operation.

Read all about the test campaign underway in WEST's December 2017 newsletter here.

The L'Oréal Foundation, in partnership with UNESCO and the French Academy of Sciences, is calling for applications to its 2018 "For Women in Science" Fellowship program.

Thirty young and talented female scientists at the doctoral or postdoctoral level will be selected this year in France. Candidates must be specialized in Life or Physical Sciences, currently work or study in France, and demonstrate academic excellence and original research. 

The application deadline is 4 April 2018.

For full information, please see the website in English and French.

EyeSteelFilm's 90-minute documentary on fusion and ITER—Let there be light—is now available worldwide for rent or purchase on the Vimeo platform. For audiences in North America it is also available on iTunes for purchase and on Amazon Prime for rent or purchase.

Subtitled ''The 100 Year Journey to Fusion,'' the documentary shows work underway around the world at both ends of the fusion spectrum—from the giant ITER Project to the warehouse-based startup. It has had success at film festivals in North America and Europe since its launch in early 2017 and major international broadcast stations are showing interest. The European culture channel Arte is set to show the documentary in the coming months.

In early January 2018, "Let there be light" was listed as one of the top ten Canadian films in 2017.

The documentary is now available for rent or purchase worldwide on Vimeo.com in English or French. In North America it is also available for purchase on iTunes and for purchase or rent on Amazon Prime, both in English.

The JT-60SA tokamak is part of the Broader Approach agreement signed between Japan and Euratom to complement the ITER Project and accelerate the realization of fusion energy. The JT-60SA tokamak represents an upgrade of a previous tokamak at the Naka facility, designed to support the operation of ITER. It will investigate how best to optimize the design and operation of fusion power plants built after ITER. First Plasma is planned for 2020, at the end of a six-year assembly and commissioning period.

In the latest news of progress, 12 cryostat vessel sectors manufactured in Spain are now ready for transport to Naka. Heavy frames and robust plastic and tarpaulin wrapping will ensure adequate protection during transport of the sectors, each measuring approximately 11 metres in height, and during storage in Japan. (Storage is required as the elements will arrive ahead of their scheduled assembly in the JT-60SA Torus Hall.)

Along with the completed cryostat vessel sectors the shipment also includes heavy lifting equipment. In total the shipment weighs about 322 tonnes. It is scheduled to arrive at the Hitachi port in Japan by mid-January 2018.

See the full article here and related information here.

The ASDEX Upgrade at the Max-Planck Institute for Plasma Physics (IPP) in Garching, Germany, is one of three medium-sized tokamaks which are part of the EUROfusion program. In conjunction with JET it provides important input to the ITER Project.

The 18th issue of the ASDEX Upgrade Letter provides the latest news in three topics. The first presents results of research on plasma stability, in particular on instabilities in the plasma edge. The second item describes the use of a newly upgraded core turbulence microwave diagnostic system, known as correlation electron cyclotron emission (CECE). Thanks to the CECE, plasma physicists will have a better understanding of turbulence in fusion plasmas.

A third contribution focuses on alternative power exhaust concepts for the APDEX Upgrade tokamak. The extraction of the power produced in a future reactor poses one of the challenges in fusion research. In the ASDEX Upgrade the lower divertor is normally used for this purpose; now, scientists are investigating alternative configurations with a new, modified upper divertor. The design phase has already started and first hardware installation is expected in 2020/2021.

The Letter also honours the young IPP physicist Benedikt Geiger who was awarded the Hans Werner Osthoff Plasma Physics Prize 2016. The prize honours outstanding achievements in the field of plasma physics.

For more information and access to the ASDEX Upgrade Letter click here.

The Polish Institute of Plasma Physics and Laser Microfusion (IPPLM) invites young scientists to attend the 14th Kudowa Summer School. The summer school, under the motto "Towards fusion energy," will be held in Kudowa-Zdrój, in the Lower Silesia region in southwest Poland, from 4 to 8 June 2018.

The school provides courses on fusion energy, plasma experiments and related technology. It will mainly look at laser fusion and laser-matter interaction studies. Topics include plasma basics and fusion energy; inertial confinement fusion; magnetic confinement fusion; plasma-diagnostics; and technology.

Registration is open until 20 March 2018. Interested participants are encouraged to give presentations. The deadline for submitting abstracts is 8 February 2018.

For all related information please go to the Kudowa Summer School website.

One of the big challenges in developing fusion energy is controlling the plasma. Disruptions of the burning plasma can halt the fusion reaction and damage the walls of the fusion device. Scientists therefore are keen to learn how to predict plasma disruptions.

Researchers at the Princeton Plasma Physics Laboratory (PPPL) employ artificial intelligence to improve predictive capability. They developed predictive software, the Fusion Recurrent Neural Network (FRNN) code, which is a form of what is called "deep learning"—a powerful version of modern machine-learning software. (Research team: William Tang, to the left; Eliot Feibush; and Alexey Svyatkovskiy, seated)

Drawing from data of the JET facility in the UK, the team has demonstrated the tool's ability to predict disruptions more accurately than previous methods. Turning their attention now to ITER, the team aims to improve the correct prediction of disruptions and reduce the number of false alarms.

The deep learning software is also a challenge for computing hardware. Several tests with the FRNN on modern powerful supercomputing devices, so-called GPU clusters, in the United States, Europe and Asia showed promising results.

Read the full article on the PPPL website.

At the joint meeting of the 26th International Toki Conference (ITC) and the 11th Asia Plasma and Fusion Association (APFA) conference—held from 5 to 8 December in Toki, Japan—ITER Science & Operations Department head David Campbell gave a plenary talk on ITER progress.

It was the occasion to recognize the many contributions of Dr Campbell to fusion research over the course of his career. The chair of the international program committee, Yutaka Kamada, and the chair of the international advisory committee, Yasuhiko Takeiri, both presented tributes. Dr Campbell retired in December from the ITER Organization.

The theme this year of the ITC meeting was "A new era in plasma and fusion research." The launch of deuterium experiments in Japan's Large Helical Device, and the first experimental results, were highlighted at the meeting, which also brought together academics and researchers from Japan, China, Korea and India in the context of the biennial APFA meeting. Three hundred participants in all took part in the four-day event. 

The UK's nuclear fusion research program can expect a big financial boost. A £86 million government investment—announced last week—will benefit the UK's Atomic Energy Authority's (UKAEA's) Culham Science Centre and its plan to build a National Fusion Technology Platform.

The platform will comprise two centres of excellence:

-        The Hydrogen-3 Advanced Technology (H3AT) centre to research how to process and store tritium;

-        The Fusion Technology Facilities to conduct tests on prototype components under conditions they would experience in future fusion reactors.

The new national fusion technology platform will open in 2020. It will enhance the UK's expertise in critical areas of fusion research and help British industry to secure contracts from ITER and other global fusion projects. It will also provide a powerful signal of the UK's intent to continue its participation in international science collaboration after leaving the European Union.

Taking a longer term view, the platform's two centres will help the UK to prepare the grounds for the first nuclear fusion power plants.

The Head of the UKAEA, Ian Chapman, said that this latest development means that: "...the UK will be at the forefront of developing fusion and bringing cleaner energy to the world."

Read the full article here.

The starting shot for the 2018 SOFT Innovation Prize has sounded. The prize is a feature of the Symposium on Fusion Technology (SOFT), a biennial conference organized by the Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA). It rewards outstanding researchers or companies who find new physics or technology solutions to address the challenges of fusion, with the potential of wider application.

The competition is open to researchers, research teams and companies from around the world. Anyone interested to enter the competition needs to apply through the Research and Innovation portal of the European Commission; the deadline for submissions is 8 March 2018. An independent jury of experts in technology transfer will select the three winners and the award ceremony will take place as part of the 30th SOFT conference taking place in Giardini Naxos, Sicily, Italy, from 17-21 September.

Last year's winners were awarded the prize for a novel type of high temperature superconductor cable based on REBCO tape material, a new membrane technology to produce ultra-pure hydrogen and a new virtual reality software technology to improve radioprotection.

SOFT is an important conference in the area of fusion technology and research in Europe. It attracts over 800 scientists, engineers, industry representatives and exhibitors from around the world.

Read the full article here.

Physicist François Ryter, of the Max Planck Institute for Plasma Physics (IPP) in Garching, Germany, has received the 2017 Nuclear Fusion Award.

The annual award recognizes exceptional work that has appeared in Nuclear Fusion, and that has had the greatest influence in the two years following publication.

Ryter was honoured for his 2014 paper on experiments in Garching's ASDEX Upgrade tokamak. "Delivering an outstanding piece of work on L—H transition physics, Ryter et al present a systematic and rigorous experimental study revealing the key role of the ion heat flux at the plasma edge. This explains the nonlinear dependence of the L—H threshold power on density and enables the derivation of a general expression for the density minimum. This is an important physics finding, with implications for ITER operation," the award panel announced.

See a full report on the IPP website.

"Few projects in the world combine such ambition, cutting-edge science and technology, and energy for future generations."

With these words Johannes Schwemmer, the Director of the European Domestic Agency, opened the 10-year anniversary celebration of Europe's involvement in ITER on 30 November.

European Commissioner for Climate Action and Energy, Miguel Arias Cañete, went on to highlight the human capital behind this one-of-kind project and praised "the work of so-many scientists and engineers, and the fact that countries, industries and research centres are working together to translate a common vision into a reality." The Mayor of the city of Barcelona, Ada Colau, explained that it was "an honour to host the European Agency and this was also proof of Barcelona's commitment to science and innovation." For Spain's Secretary of State for Research, Development and Innovation, Carmen Vela, ITER will "also open the door to the commercialization of fusion energy by laying the industrial foundations in each of its parties." 

View more on the event, as well as anniversary video clips, here.

The US Department of Energy (DOE) has awarded physicist Edmund Synakowski with its Meritorious Service Award. He received the honour "for strong and insightful leadership" during his eight years as Associate Director of the DOE's Office of Fusion Energy Sciences and for having "reshaped and improved the national fusion energy sciences program," administering an annual budget of about US $400 million to develop nuclear fusion as an energy source.

Synakowski is the new vice president for research and economic development of the University of Wyoming where the award ceremony took place on 29 November 2017. He previously led the fusion energy program at the Lawrence Livermore National Laboratory and held a number of roles at Princeton University's Plasma Physics Laboratory.

Synakowski is an expert in plasma physics and has authored over 160 peer-reviewed articles on plasma fusion science.

Read the full article by the University of Wyoming here.

An unknown version of the famous Beatles song? No—a new way of exploring the experimental fusion device Wendelstein 7-X, located at the Max Planck Institute for Plasma Physics in Greifswald, Germany.

Similar to ITER, Wendelstein 7-X aims to replicate the process at work in the core of the Sun to develop a clean and abundant energy source. This fusion device of the stellarator variety celebrated its first plasma in December 2015.

Are you interested in having a peek inside an extraordinary feat of science and technology? Normally accessible to experts only, Wendelstein 7-X has now opened its virtual doors and invites the interested public to a 360-degree tour. You can look into every corner of the experimentation hall, climb into the plasma vessel itself and visit the beam duct or listen to scientists explain the intricacies of the device and present their work. Information panels provide further background on plasma, superconducting magnets, graphite cladding, divertors and much more.

Go to this address to take a tour on your PC, tablet or smartphone.

At the Dutch Institute for Fundamental Energy Research, DIFFER, scientists are working to accelerate the transition to a sustainable society.

 

In the latest edition of the newsletter EXPLORE, researchers report on the promise of liquid metal walls in fusion reactors, the possibility of vapour shielding, and the institute's strategic plan for 2017-2022, which maintains a strong focus on fusion energy and solar fuels.

 

Read the latest DIFFER newsletter here.

Plasma science is about to get a new online outlet. Aptly named Plasma, the cross-disciplinary scholarly journal will be a platform for all aspects of plasma science such as plasma physics, plasma chemistry and space plasma. Publication formats include research articles, reviews, short communications and letters.

The international, open-access and peer-reviewed scientific journal will be published quarterly by the Swiss online publisher MDPI. The first volume of the new journal is expected to come out in 2018.

David A. Gates, principal research physicist and Stellarator Physics Division Head at the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL), is the newly appointed editor-in-chief of the journal. Following his nomination Gates said: "I look forward to helping advance the international research arena in plasma science. This is an outstanding opportunity to help promote the research of a vital area of physics and to open the door to communicating that research to the global community."

Plasma is the fourth state of matter. It is a hot, electrically charged gas and the most abundant form of visible matter in the universe. Some 99 percent of the known universe is in plasma state. Plasma can also be found on Earth such as in lightning and fluorescent light bulbs.

Read more about the journal and its new editor-in-chief.

Representatives of the European Commission and delegates to the Council of the European Union responsible for science and research visited ITER on 20 November.

Their aim was to get first-hand information on the current status of the ITER Project to allow member states to respond to the Commission. Thirty-four delegates from 18 states plus Switzerland participated.

In a communication issued in June 2017, the Commission had requested support from the European Parliament and for a mandate from the Council of the European Union to approve—on behalf of Euratom—the new ITER Baseline, including the new schedule and the associated resource requirements.

The request was based on the Commission's positive assessment of the changes in the overall management of the ITER Project and the completion of important milestones in the preceding two years.

The Culham Centre for Fusion Energy (CCFE) in the United Kingdom, owned and operated by the UK Atomic Energy Authority (UKAEA), is home to two magnetic fusion experiments.

The European tokamak JET is currently getting ready for a run of experiments using the high-power fuel mixture of deuterium and tritium (DT), while the Mega Amp Spherical Tokamak (MAST) is nearing the end of an upgrade program (completion 2018) to investigate the super-X divertor—a magnetic configuration that spreads the heat loads at the divertor area of the machine.

MAST is about to undergo a baking operation in order to clean the interior surfaces of the vessel and enable the ultra-high vacuum required for operation. In this picture, the machine has been fitted with a thermal jacket, ready for baking at 160 °C.

Read more about the operation on the CCFE website.

Fourteen authors and one illustrator share their passion for fusion in special October issue of Fusion in Europe. The issue contains a variety of topics ranging from ITER, JET, Brexit, material science, the Lawson Criterion, plasma turbulence and the history of fusion research in Mexico.

What is also special about the issue is that most of the authors are students or young researchers from around the world. The newsletter is thus a window onto the views of the next generation of fusion professionals and enthusiasts.

Click here to view the full October issue of Fusion in Europe.

A major challenge in the development of fusion energy is maintaining the ultra-hot plasma of a fusion device in a steady state, or stable form. While superconductors can allow a fusion reactor to operate indefinitely, controlling the plasma with superconductors presents a challenge because engineering constraints limit their response time compared to the more energy consuming copper coils.

The slower pace makes it difficult to operate a stable discharge with the large plasma volume or extended vertical height required for producing fusion power. Exploration of this issue in a current superconducting device is particularly helpful for ITER, which will be operational in 2025.

At the leading edge of this control challenge is the Korea Superconducting Tokamak Advanced Research (KSTAR) device, one of the largest superconducting tokamaks in the world. Its superconductors are made of niobium and tin, the same conductor that is planned for use in ITER.

A team of US and Korean researchers, led by physicist Dennis Mueller (photo) of the Princeton Plasma Physics Laboratory (PPPL), has now sharply improved the stability of the elongated plasma in KSTAR, setting an example for how to address similar issues in other superconducting devices such as ITER. The successful control method, demonstrated this summer by Mueller and physicists from the National Fusion Research Institute (NFRI) in South Korea, which operates the tokamak, and General Atomics in San Diego, caps years of effort to control the vertical instability, which had allowed the plasma to bounce up and down in the 11-foot-high vacuum vessel.

See how they did it in the full article on the PPPL website.

It is inscribed in bold letters on the large poster that is affixed to the ITER Assembly Hall: harnessing fusion energy is akin to "bringing the power of the Sun to Earth."

And it is true: like the Sun, the ITER Tokamak will produce energy by fusing hydrogen nuclei into helium.

The fusion reaction in our machine, however, is not like that which occurs in Sun-like stars. Although the end product (helium) and the ingredients (hydrogen isotopes in one case, hydrogen in the other) are the same, the nature of the process is profoundly different.

In a recent article on the Forbes website astrophysicist Ethan Siegel explains how "hydrogen-fusing-into-helium makes up less than half of all nuclear reactions in our Sun," and how the nuclear physics in stellar bodies abounds in "strange, unearthly phenomena."

The inscription on the Assembly Hall remains nonetheless true. ITER is indeed "bringing the power of the Sun to Earth." It's just that stars and tokamaks have different ways of obtaining a similar result.

Click here to read the full Forbes.com article.

An international team of fusion experts working at the DIII-D National Fusion Facility in San Diego, California, has discovered a way to minimize the effects of a phenomenon that can decrease the performance of fusion reactors and even possibly cause damage to the device. This work shows that localized electron heating by microwaves is an effective tool for modifying Alfvén eigenmode activity in DIII-D and other devices worldwide.

Alfvén waves can cause redistribution or loss of the injected neutral beam ions that are needed to heat fusion devices and of the helium nuclei (alpha particles) produced by the fusion reaction that also contribute to the continued heating of the plasma. If left to grow unabated, the Alfvén waves can result in reduced performance and potentially damage vessel components.

Powerful microwave beams deposited near the location of so-called reversed shear Alfvén eigenmodes (RSAEs) are found to modify the wave activity significantly—in some cases completely removing the modes. Based on experiments run at the DIII-D tokamak, the team has arrived at a simple model that determines how to predictably minimize RSAEs by using microwaves to heat the electrons at particular points in the plasma.

Read the full report here.

-- Spectrograms showing the change in wave activity with and without microwave heating. With no heating (top), upward frequency sweeping RSAEs are observed. With heating near the wave location (bottom), no RSAEs are expected or observed. Adapted from: M.A. Van Zeeland, W.W. Heidbrink , S.E. Sharapov , D. Spong , A. Cappa, et.al., Nucl. Fusion 56, 112007 (2016).

An update on ITER has been published in the Autumn 2017 issue of Energy Focus, the flagship magazine of the UK-based Energy Industries Council.

Titled "Is Fusion the Fuel of the Future?" the article describes recent project performance, concerns about the effect of Brexit, and why it's all worth it.

You can read the article on line at Energy Focus (pp 46-47).

A new National Geographic series on renewable energy, called "Positive Energy," will be featuring the ITER Project in one of its upcoming episodes.

The episode will be viewable on the National Geographic Channel in Europe on Wednesday 1 November at 10:00 p.m. 

It has already been broadcast on the National Geographic Channel in Africa and China (25 October) and in the Americas (18 October).

See more on the "Positive Energy" website.

 

For hydrogen atoms to fuse into helium, the heat of the ultrahot plasma in the tokamak must be maintained. But, like boiling water, plasma has blobs (or bubbles) that percolate within the plasma edge, reducing the performance of the plasma by taking away heat that sustains the fusion reactions.

Now, scientists at the Princeton Plasma Physics Laboratory (PPPL) in the US have completed new simulations that could provide insight into how blobs at the plasma edge behave. The simulations, produced by a code called XGC1 developed by a national team based at PPPL, performed kinetic simulations of two different regions of the plasma edge simultaneously. This ability produces a more fundamental and fuller picture of how heat moves from plasma to the walls, potentially causing damage.

Blobs play an important role in the outward movement of particles in plasma. Blobs cause approximately 50 percent of the particle loss at the plasma edge, and researchers have observed blobs in a wide range of plasma devices, including tokamaks, figure-eight-shaped fusion devices known as stellarators, and linear machines. "The big picture is that blobs can pull energy and particles out of the plasma, and you don't want that," said PPPL physicist Michael Churchill, lead author of a paper describing the results in the journal Plasma Physics and Controlled Fusion. Churchill said. "You want to keep things confined."

Read more on the PPPL website.

-- Physicist Michael Churchill

Researchers led by the Princeton Plasma Physics Laboratory (PPPL) have proposed an innovative design to improve the ability of future fusion power plants to generate safe, clean and abundant energy in a steady state, or constant, manner. The design uses loops of liquid lithium to clean and recycle the tritium, the radioactive hydrogen isotope that fuels fusion reactions, and to protect the divertor plates from intense exhaust heat from the tokamak that contains the reactions.

"There are many challenges to developing fusion energy and the handling of heat on divertor plates is among them," said PPPL physicist Masa Ono, lead author of a paper about the design published in the journal Nuclear Fusion. "We wanted to see how we can protect the divertor plates and keep the fusion chamber clean."

The system that Ono and colleagues designed calls for pumping liquid lithium in and out of a tokamak, a type of magnetic fusion device, to maintain steady state operation while cleaning out dust and other impurities from the plasma and safeguarding the divertor. The lithium, a silvery metal that readily combines with other elements, would serve a number of functions, including protecting the divertor plates, capturing tritium for recycling, and removing dust and other unwanted elements.

Continue reading on the PPPL website.

-- Physicist Masa Ono of the Princeton Plasma Physics Laboratory.

According to the United States Energy Information Administration, the amount of energy supplied by all fuel sources across the world is tremendous: 155,481 teraWatt-hours as of 2014, the latest year on record.

In order to meet this enormous energy demand in a given year, we need to burn 24 billions tonnes of coal, or 12 billion tonnes of oil, or a bit less of natural gas (10.4 billion tonnes).That's for fossil fuels.

If we were to use only conventional nuclear energy to power the world, we would need to consume approximately 7,000 tonnes of nuclear fuel (enriched uranium or mixed oxyde).

However with nuclear fusion, only 867 tonnes of hydrogen would suffice...

Forbes magazine has a detailed article on this topic here.

The WEST project is based on an upgrade of the Tore Supra tokamak, in operation since 1988 in France (CEA- IRFM).

With its new tungsten divertor WEST has become a test bed for ITER, capable of testing ITER high heat flux component technologies in relevant plasma conditions. 

Following the commissioning of its sub-systems, WEST has had a short shutdown period during which the ICRH antenna was installed and other machine optimization activities carried out. Plasma experiments should resume in October.

See the latest news in WEST's October newsletter.

The European Domestic Agency has successfully tested prototypes of a specific type of magnetic diagnostic sensor at the Belgian SCK-CEN and the Czech REZ laboratories.

The diagnostic sensor prototypes, based on Low-Temperature Co-fired Ceramic (LTCC) technology, responded well to neutron exposure. Data collected throughout the experimentation will help engineers optimize the sensors' final design.

The diagnostic LTCC sensors measure the magnetic field around the plasma core and yield vital information regarding its position and shape. Of the more than 1,500 magnetic field sensors of various different types required on ITER, the LTCC-based sensors will be most exposed to neutrons.

The prototypes were manufactured by EPFL (Switzerland), Via Electronic (Germany) and VTT (Finland).

Read the full story on the European Domestic Agency website.

It was against the backdrop of the magnificent National Museum of Natural History where "Let there be Light" celebrated its most recent success by opening the 2017 edition of the Pariscience Film Festival.

More than 200 guests, among them many film-producers and journalists, had gathered in the historic amphitheatre to watch the award-winning 90-minute documentary on fusion energy produced by Canadian director Mila Aung-Thwin and cinematographer Van Royko.

Only four days before, Mila Aung-Thwin had attended the Zurich Film Festival where the film screened twice. Now he was on stage in Paris, together with ITER Director-General Bernard Bigot and ITER scientist Mark Henderson, answering the questions from the audience. For most of the attendees, the film had been the first contact with the ITER Project and so the crowd was curious to learn more about the international quest for fusion energy.

The applause at the end paid tribute to an entertaining evening and—as many professional film producers attested—to an outstanding film.

A third batch of electrotechnical equipment has left the port of Saint Petersburg, Russia, for delivery to ITER. On board are 85 tonnes of aluminium DC busbars and system components, part of an overall procurement package that includes some 5 kilometres of busbars (500 tonnes) as well as fast discharge units and switching networks.

Busbars are the long metal components that will "snake" through the installation to feed the superconducting magnets with large amounts of current. The biggest are designed to carry close to 70 kiloamps of current to the 18 toroidal field coils of the machine; others will connect to the poloidal field coils, correction coils and the central solenoid.

The first two batches of equipment were delivered and 2015 and 2016, and more are expected. The main supplier of this equipment is the Efremov Institute (NIIEFA), St. Petersburg.

--Alex Petrov, ITER Russia

Rich Hawryluk—who was Deputy Director-General for the Administration Department at the ITER Organization from 2011 to 2013—has been appointed interim director of the Princeton Plasma Physics Laboratory (PPPL) while an international search for a permanent director moves forward. 

The leadership change comes as PPPL moves forward with the recovery phase of the NSTX-U spherical tokamak, which encountered a malfunction in one of its magnet coils in 2016. The lab is constructing prototype magnets in preparation for replacing the one that failed last year, as well as five others that were built under similar conditions. 

Hawryluk has a long association with the PPPL lab, having served as former head of the Tokamak Fusion Test Reactor (TFTR) in the 1990s, deputy director of the laboratory from 1997 to 2008, and head of the ITER and Tokamaks Department from 2009 to 2011 and 2013 to the present.

The KTM tokamak, based at the National Nuclear Center in Kurchatov, Kazakhstan, is a small and versatile machine that is capable of testing materials under high particle and heat flux.

The spotlight turned this summer to this recent member of the worldwide tokamak community, as Kazakhstan hosted the 2017 World's Fair. A Cooperation Agreement was also signed between Kazakhstan's National Nuclear Center and the ITER Organization in June 2017 that opens the door to scientific and engineering cooperation between the two institutions.

Kazakh Journalist Grigory Bedenko has visited the KTM Tokamak in Kurchatov, where commissioning operations are underway in preparation for the start of operations next year.

See his long photo reportage here.

ITER's vacuum vessel port plugs are critical components that seal the plasma chamber and allow experiments to take place in a high vacuum environment.

The Russian Domestic Agency—responsible for supplying four test stands for the vacuum, heat and functional testing of the port plugs before their installation on the machine—has contracted with the Russian firm Cryogenmash for the development of the technology.

The team at Cryogenmash is currently testing the sealing flanges that will secure the port plugs on the test stand and running tests on the gaskets to arrive at a final choice of technology and material. Vacuum and leak tests were run recently with results that surpassed expectations.

Watch a five-minute video of the work underway courtesy of ITER Russia.

The latest podcast from Decrypted by Bloomberg starts with the question: "How close are we to realizing the silver bullet for clean, cheap and abundant energy ... fusion?"

Featuring lengthy interviews at the US Department of Energy's largest science and energy laboratory, the Oak Ridge National Laboratory in Tennessee, journalists Jing Cao and Aki Ito delve into the way nuclear fusion fuels our Sun and stars and how scientists plan to make it commercially viable on Earth, despite a lack of funding ...

Follow the 25-minute podcast "The Nuclear Tech Breakthrough That Could Make Oil Obsolete" here. 

Physicist Fatima Ebrahimi from the Princeton Plasma Physics Laboratory (PPPL) has for the first time used advanced models to accurately simulate key characteristics of the cyclic behaviour of edge-localized modes (ELMs), a particular type of plasma instability.

The findings could help physicists more fully comprehend the behaviour of plasma, the hot, charged gas that fuels fusion reactions in doughnut-shaped fusion facilities called tokamaks, and more reliably produce plasmas for fusion reactions. The findings could also provide insight into solar flares, the eruptions of enormous masses of plasma from the surface of the sun into space.

ELMs occur around the outer edge of high-confinement, or H-mode, plasmas due to strong edge currents. Ebrahimi used a computer simulation code known as NIMROD to show how ELMs go through a repeated cycle in which they form, develop, and vanish.

The model demonstrates that ELMs can form when a steep gradient of current exists at the plasma edge. The gradient develops when the plasma moves suddenly up or down, creating a bump in the current and forming an edge current sheet. The instability then forms a current-carrying filament that moves around the tokamak, producing electrical fields that interfere with the currents that caused the ELMs to form. With the original currents disrupted, the ELM dies. "In a way," Ebrahimi said, "an ELM eliminates its own source — erases the bump on the edge current — by its own motion."

Ebrahimi's findings are consistent with observations of cyclic behaviour of ELMs in tokamaks around the world. These include Pegasus, a small spherical device at the University of Wisconsin; the Mega Ampere Spherical Tokamak (MAST) in the United Kingdom; and the National Spherical Torus Experiment (NSTX), the flagship facility at PPPL before its recent upgrade. The research could also improve understanding of solar eruptions, which are accompanied by filamentary structures similar to those produced by ELMs. Her next step will involve investigating the impact of differences in plasma pressure on the cyclic behaviour of ELMs.

Read the full article on the PPPL website.

The elements of the ITER divertor that will directly face the hot plasma must withstand a heat load that is estimated at ten times that of a spacecraft re-entering Earth's atmosphere.

Procuring parties Russia (divertor dome), Japan (divertor outer targets) and Europe (divertor inner targets) are all engaged in multiyear qualification programs that include prototype fabrication and high heat flux testing.

The European Domestic Agency made the choice of contracting with three separate manufacturers for the development of small-scale inner vertical target prototypes that are 1/19th of the actual scale needed for ITER. In the first stage of the pre-qualification program the prototypes were successfully tested in high heat flux conditions; the next step will now be to develop full-scale prototypes. This phase—which involves the three manufacturers plus a fourth, pre-qualified supplier—is expected to last approximately three years.

Read the full article on the European Domestic Agency website.

We have learned with profound sadness of the passing of Dr Yasuo Shimomura, who served as ITER Deputy Director from the beginning of the Engineering Design Activities (EDA) in 1992 until 2001. From 2001 until 2003 Dr Shimomura was ITER International Team Co-Leader, and from 2003 until 2005 he was ITER Interim Project Leader; during this last period he led the ITER team through the difficult transitional phase from the design activity to the start of construction in 2006.

A graduate of Osaka University, Dr Shimomura had a distinguished career in fusion research at the Japan Atomic Energy Research Institute, JAERI (now part of the National Institutes for Quantum and Radiological Science and Technology, QST). He was a leading figure in the construction and operation of the JFT-2a/DIVA tokamak, developing a reactor-relevant divertor concept that is currently being applied to ITER. He was also Leader of the JT-60 Experimental Planning and Analysis Group, and in 1986 was appointed as Head of the Large Tokamak Experiment Division at JAERI, with overall responsibility for the JT-60 tokamak. From 1988 he combined the leadership of the JT-60 device and its conversion to JT-60U with an appointment as Head of the Poloidal Field Design Group within the ITER Conceptual Design Activities (CDA). He was appointed ITER Deputy Director within the ITER EDA in July 1992, with responsibility for the design integration of the project. Dr Shimomura also held guest scientist positions at Princeton Plasma Physics Laboratory from 1976 to 1977 and at the Max-Planck-Institut für Plasmaphysik in Garching from 1981 to 1982.

Dr Shimomura will be remembered by his many friends and colleagues in the ITER community as a gifted physicist who contributed greatly to the project during an involvement spanning 20 years. He will be greatly missed by all who knew him and who benefitted from his leadership and guidance.

In ITER, six technological solutions for tritium breeding—in the form of test blanket modules plus associated ancillary systems—will be operated and tested for the first time. Their experimental validation will represent a major step for fusion development beyond ITER, when tritium fuel will necessarily have to be bred within the reactor.

In China, Europe, India, Japan and Korea these solutions are under development, with Russia and the United States contributing R&D and providing general support for the test blanket module program.

Europe is developing two types of test blanket modules, which consist of a steel box containing tritium breeders, neutron multiplier materials and heat extraction plates. Over the past two years, the European Domestic Agency and industrial partners have been manufacturing mockups of these boxes to test welding techniques. A preliminary welding procedure, employing a tungsten inert gas (TIG) welding robot to carry out the tasks within the limited space of the box, has been identified. The welding qualification cycle is expected to end within the next two years.

See the full article on the European Domestic Agency website.

Edmund Synakowski—the Associate Director of the US Department of Energy (DOE) Office of Fusion Energy Sciences and former ITER Council Vice-Chair—has been chosen as the University of Wyoming's vice president for research and economic development. Synakowski will also be a professor in the university's Department of Physics and Astronomy.

The role of the vice president for research and economic development is to support and facilitate the research efforts of University of Wyoming's faculty, staff and students; direct the university's research mission as a public research university; promote the university's research program with stakeholders; and direct technology transfer and commercialization efforts for the university's intellectual property.

Synakowski has held his current position, associate director of science in the Department of Energy, since 2009, administering a budget of about $400 million annually to develop nuclear fusion as an energy source. His agency supports research at more than 50 universities, eight national and two federal laboratories, and 15 industry groups.

He previously led the Fusion Energy Program at the Lawrence Livermore National Laboratory in California and held a number of roles at Princeton University's Plasma Physics Laboratory.

Read the full report on the University of Wyoming's website here.

At least 100 miniature cameras will be installed inside the ITER machine to act as the eyes for operators charged with machine maintenance.

Some of them will give a wide-angle view of the inside of the machine; others will be embedded on the robotic arms used for repairs. By receiving live image from the cameras, engineers hundreds of metres away will be able to operate maintenance and repair equipment with extreme accuracy.

The European Domestic Agency has been working with Oxford Technologies Limited (OTL) to develop and validate the different subsystems of the miniature cameras, which will have to operate within severe space constraints and often in an environment exposed to radiation. Subsystems developed by ISAE, France (image sensors); CEA, France (illumination system); and Jean Monnet University Saint Etienne, France (optic system) have been successfully tested over the past year at Belgium's SCK-CEN facility where they were exposed to different levels of gamma radiation.

The next step will be to develop a camera prototype.

Read the full story on the European Domestic Agency website.

To predict the impact of removing exhaust heat from the ITER Tokamak, researchers are calling on the Titan supercomputer at the Oak Ridge Leadership Computing Facility in the US.

Using the 27-petaflop behemoth, researchers based at Princeton Plasma Physics Laboratory (PPPL) are simulating the area where the plasma edge meets the divertor—the material structure engineered to remove exhaust heat from the vacuum vessel. Specifically, the team has evaluated the heat-flux width at the divertor, or the width of the material surface that might sustain the highest heat load.

Because the divertor directly faces the exhaust flow, it is bombarded with hot particles driven by electromagnetic fluctuations. In ITER, in order to withstand the highest surface heat load, the divertor will be made of the toughest element on Earth: tungsten.

"You don't want to start and stop ITER too often to replace this divertor material, so it has to be able to withstand the heat load," team leader C.S. Chang reports. "Ideally, we want the hot exhaust particles to hit the surface in a much wider area so that it's not damaged."

Based on simulations made possible by Titan's supercomputing capacity, Chang's team predicts that in ITER, due to the size of the plasma, edge plasma turbulence may spread heat across a larger area of the divertor surface and significantly increase the heat-flux width relative to current smaller-scale fusion devices.

Read the full report on research results at OLCF.

At the Swiss Plasma Center in Lausanne, Switzerland, the TCV tokamak was recently shut down for an upgrade of its Thomson scattering diagnostic. The operation was successful: shortly after commissioning the first measurements demonstrated greatly enhanced spatial and spectral resolution for the temperature and density profile measurements of TCV plasmas.

TCV is a variable configuration tokamak with highly specialized capabilities (plasma shaping, versatile electron cyclotron heating, measurement, control systems) for the exploration of the physics of magnetically confined plasmas.

See the full article on the EPFL/Swiss Plasma Center website.

Under contract with the European Domestic Agency, a team of experts has been working for more than a year to identify key technologies to perform the cutting and welding operations that will be required during the change-out of ITER divertor cassettes.

The technical constraints are enormous—the work (both cutting and welding) will have to be performed remotely, the operational space is severely limited, and no lubricant can be applied as ITER is a nuclear environment.

Experts from Assystem UK and the UKAEA robotics development laboratory RACE (for Remote Applications in Challenging Environments) have identified candidate techniques; now trials are underway and the search is on for the best tools to do the work remotely.

Read more on the European Domestic Agency website.

The steel, the pipes, the tangle of cables and wires ... to sum it looks confusingly technological—but to others it's inspiring!

UK artist Sarah Moncrieff specialises in urban scenes and industrial interiors. She first heard of JET, the European fusion research experiment hosted at the Culham Centre for Fusion Energy (CCFE), via a friend who works at the site.

"He thought, quite accurately, that I would be interested in it as a subject for my painting. What I hadn't anticipated was how much I would become interested in the work that is done at Culham. The work is fascinating and the sense of seeing something at the forefront of scientific progress was thrilling for me. I know that excitement informed my paintings."

Sarah's paintings of JET were recently exposed at an on-site Open Day, to popular acclaim. You can see more of Sarah's work on her website.

Read the full article at CCFE.

After celebrating its First Plasma in December 2016, the WEST tokamak (for W Environment in Steady-state Tokamak) was reopened for the installation of two modified LHCD antennas for plasma heating (through lower hybrid current drive), then plasma operations restarted in April 2017.

Although plasma breakdown was routinely achieved, the ramping up of the plasma current was found to be difficult due to induced currents in the passive structures that have been introduced inside the vacuum vessel to produce the divertor configuration.

In effect, the WEST test platform is a modification of the Tore Supra tokamak at the Institute for Magnetic Research (CEA Cadarache, France) that introduces an actively cooled tungsten divertor. The machine has been considerably altered, with a "welcoming structure" for the new divertor, new in-vessel coils, new diagnostics, and adaptations to the heating, fuelling and cooling systems.

The vessel has been reopened to address stray magnetic field compensation through modification of the divertor baffle and a reduction in its electric conductivity to limit induced current. Experiments are expected to resume by the end of June.

Read more in the lastest WEST Newsletter.

For fusion to generate substantial energy, the ultra-hot plasma that fuels fusion reactions must remain stable and kept from cooling. Researchers have recently shown lithium, a soft, silver-white metal, to be effective in both respects during path-setting US-Chinese experiments on the Experimental Advanced Superconducting Tokamak (EAST) in Hefei, China.

Seven US researchers traveled to EAST in December, 2016, to participate in the experiments. They deployed lithium in the Chinese tokamak in three different ways: through a lithium powder injector, a lithium granule injector, and a flowing liquid lithium limiter (FLiLi) that delivered the element in liquid form to the edge of EAST plasmas. Good results were shown by all three techniques.

Leading the US collaboration is the US Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL), together with co-principal investigators Los Alamos and Oak Ridge National Laboratories, with Johns Hopkins University, the University of Illinois at Urbana-Champaign, the University of Tennessee-Knoxville, and the Massachusetts Institute of Technology. Scientists from General Atomics also participate via a separate grant.

-- John Greenwald, PPPL

See the full report on the PPPL website.

It is with great regret that the ITER community has learned of the sudden passing of Professor Predhiman Krishan Kaw on 18 June.

Professor Kaw was a well-known and highly respected plasma physicist, author of over 380 research publications in scientific journals. He was the founding director of the Institute for Plasma Research in Gujarat, India, which he led from 1986 to 2012. Named Year of Science Chair by the Indian Department of Science & Technology (DST), Professor Kaw continued to be active in research and in the mentoring and training of the younger generation of plasma physicists as DST Professor at the Institute for Plasma Research.

Professor Kaw was also the first Chair of the ITER Council Science and Technology Advisory Committee (STAC), leading the committee's deliberations from 2007 to 2009, and a regular participant to ITER Council meetings as Representative of India.

For his outstanding contributions to experimental and/or theoretical research in fundamental plasma physics and plasma applications, he was awarded the prestigious Padma Shri award (India's fourth highest honour) in 1985; the Shanti Swarup Bhatnagar Prize for Science and Technology in 1986; the World Academy of Sciences (TWAP) Prize in 2008; and the Subrahmanyan Chandrasekhar Prize of Plasma Physics in 2016 (see related article in Newsline).

See the Institute for Plasma Research website for more information.

Professor Predhiman Krishan Kaw (2nd from left) is seen here on 21 November 2014 at the inauguration of the Cryostat Workshop, where India is assembling the ITER cryostat. With him are the former ITER Director-General Osamu Motojima; M.V. Kotwal, president of Larsen & Toubro's Heavy Engineering Division; and Shishir P. Deshpande, Head of the Indian Domestic Agency.

The Culham Centre for Fusion Energy (CCFE) in the UK is looking for people in the fusion community who could benefit from its new cloud-based computing facility, which has a capacity to crunch data that could help researchers and promote collaborative projects. 

The CUMULUS Modular Data Centre, which opened in May, propels CCFE into the next era of supercomputing. With a total of 1128 cores, 18 terabytes of RAM and 170 TB of high performance storage—and the capacity to grow in sync with CCFE's need for computing power—the cloud-base system is also open to users across the international fusion community.

Interested parties should contact Rob Akers at rob.akers@ukaea.uk.

Lithium compounds improve plasma performance in fusion devices just as well as pure lithium does, a team of physicists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) has found.

The research was conducted by former Princeton University physics graduate student Matt Lucia under the guidance of Robert Kaita, principal research physicist at PPPL and one of Lucia's thesis advisors, as well as the team of scientists working on a machine known as the Lithium Tokamak Experiment (LTX).

Lucia used a new device known as the materials analysis and particle probe (MAPP), invented at the University of Illinois at Urbana-Champaign and installed on LTX. The MAPP system lets scientists withdraw samples into a chamber connected to LTX and study them without compromising LTX's vacuum environment. MAPP lets scientists analyze how tokamak plasmas affect a material immediately after the experiment ends. In the past, scientists could only study samples after the machine had been shut down for maintenance; at that point, the vacuum had been broken and the samples had been exposed to many experiments, as well as to air.

Lucia used the evaporation technique to coat a piece of metal with lithium, and then used MAPP to expose the metal to plasma within LTX. As he expected, Lucia observed lithium oxide, which forms when lithium reacts with residual oxygen in LTX's vacuum chamber. He was surprised, however, to find that the compound was just as capable of absorbing deuterium as pure lithium was.

"Matt discovered that even after the lithium coating was allowed to sit on the plasma-facing components within LTX and oxidize, it still was able to bind hydrogen," said Kaita.

Lucia's results are the first direct evidence that lithium oxide forms on tokamak walls and that it retains hydrogen isotopes as well as pure lithium does. They support the observation that lithium oxide can form on both graphite, like the tiles in NSTX, and on metal, and improve plasma performance.

Read the full article by Raphael Rosen on the PPPL website.

-- Physicists Robert Kaita and Michael Jaworski in front of another PPPL fusion device, the NSTX-Upgrade.

In the context of its Roadmap to the realization of fusion electricity EUROfusion, the European Consortium for the Development of Fusion Energy, has identified a number of crucial technical challenges that must be addressed through advanced research.

One of these is finding a viable solution for the heat exhaust in a future fusion reactor, considering that the divertor strategy planned for ITER cannot be extrapolated to a larger, steady-state facility.

Late 2015, EUROfusion called for proposals on plasma exhaust projects, which an independent panel of experts evaluated. The call, termed Plasma Exhaust (PEX) Assessment, received ten proposals that covered conventional and alternative divertors, as well as conventional materials and plasma-facing units as well as advanced materials.

EUROfusion selected six projects for receiving support. These include: ASDEX Upgrade at the Max Planck Institute of Plasma Physics, Garching (Germany); Forschungszentrum Jülich (Germany); Jozef Stefan Institute (Slovenia); MAST-Upgrade, (United Kingdom); TCV at the Swiss Plasma Center (Switzerland); and WEST at CEA (France).

Read the full article at EUROfusion here.

--Photo of the JET tokamak courtesy EUROfusion

After the success of the first fusion writers' edition of Fusion in Europe last year, the magazine is again looking for ambitious volunteer writers for the 2017 autumn issue.

Fusion in Europe is the regular publication of EUROfusion, the European Consortium for the Development of Fusion Energy, which manages European fusion research activitites on behalf of Euratom.

Applicants should be enthusiastic and ambitious, with ideas about how to share the promise of fusion with the world. The deadline is 21 June. For more information, please visit this link.

Scientists now have a better understanding of the factors leading to steel degradation and of the ways to improve the design and development of key components, such as the ITER breeding blankets—where tritium fuel will be produced from the interaction of fusion neutrons with lithium.

In a unique test facility at the Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) in Brasimone, candidate steels were exposed to liquid lithium in order to measure degradation (corrosion and/or erosion) over time.

Two types of reduced activation ferritic martensitic (RAFM) steels under consideration for fusion applications—EUROFER97 and F82H—were tested at ENEA's LiFus6, built for the IFMIF/EVEDA project (IFMIF will carry out testing and qualification of advanced materials under conditions similar to those of a future fusion power plant/EVEDA is advancing the engineering validation of key IFMIF components and systems).

IFMIF/EVEDA is developed jointly by Europe and Japan in the framework of the Broader Approach agreement, which covers fusion R&D activities that are complementary to ITER and the next-stage device DEMO.

Read more about the successful LiFus6 test campaign on the European Domestic Agency website.

Image: Celebrating at ENEA: IFMIF/EVEDA Project Committee members and representatives of contributing laboratories.

Following an initial run at the Wendelstein 7-X stellarator that lasted from December 2015 to March 2016, a shutdown phase ensued to equip the machine for an operational campaign with longer discharges and higher heating power.

As part of tasks to prepare for the next phase, programmed to start this summer, technicians have installed or adapted 8,000 graphite tiles on the inner wall of the plasma vessel, replaced the limiter with a test divertor, and installed cooling structures such as pipes and shields.

Read about the complexity of these shutdown activities in the latest "Wendelstein 7-X Newsletter."

Image: courtesy of IPP Greifswald

Culham's new tokamak MAST Upgrade is to receive funding to tackle one of the hottest issues in fusion energy research—plasma exhaust.

EUROfusion, the European consortium for fusion R&D, has approved the first phase of its contribution to a £21-million program of enhancements to MAST Upgrade, which is only months away from its first operations. Funding for the enhancements, which will be phased from now to 2022, will come jointly from EUROfusion and the UK's Engineering and Physical Sciences Research Council.

The controlled exhaust of power and particles from a very hot tokamak fusion plasma, through the divertor area of the machine, is arguably the biggest challenge facing a future fusion power plant. The extreme power loadings (>10 megawatts per square metre—higher than that on a spacecraft re-entering Earth's atmosphere) in a conventional divertor will require regular replacement of reactor components and adversely affect the economics and cost of electricity. It is no surprise, then, that divertor and exhaust physics is a major part of EUROfusion's reactor design work as part of their EU Roadmap to the Realisation of Fusion Energy.

See the original article at the Culham Centre for Fusion Energy (CCFE) to find out more about the planned enhancements.

Researchers at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) and General Atomics have simulated a mysterious self-organized flow of the superhot plasma that fuels fusion reactions. The findings show that pumping more heat into the core of the plasma can drive instabilities that create plasma rotation inside the doughnut-shaped tokamak that houses the hot charged gas. This rotation may be used to improve the stability and performance of fusion devices.

The results, reported in January in the journal Physical Review Letters, use first principles-based plasma turbulence simulations of experiments performed on the DIII-D National Fusion Facility that General Atomics operates for the DOE in San Diego. The findings could lead to improved control of fusion reactions in ITER, the international experiment under construction in France to demonstrate the feasibility of fusion power.

Read the full article on the PPPL website.

In order to master what's commonly refered to as "the energy transition," a diversity of energy sources need to be matched up in the energy system of the future — decentralized and centralized, weather-dependent and continuously operable units.

The technological and economic interactions of all system components (generation, storage, load and transport facilities) and their intelligent networking are being tackled by the Energy System Integration project, which the Helmholtz Association is funding with five million euros in the next three years in the context of their Initiative and Networking Fund. The partners involved, including Max Planck Institute for Plasma Physics (IPP) at Garching und Greifswald, are making further contributions.

The aim of the research project is to model the architecture for an environmentally compatible, efficient and stable energy system of the future.

Expected as new primary energy source in the second half of the century are fusion power plants, environmentally and climatically friendly facilities supplying about one gigawatt of electric power. The contribution of IPP will therefore be to work out the physical and technical properties of these devices — of either the tokamak or stellarator type.

Read more about the project on the IPP Garching website. (Photo: © EFDA)

Are you a university graduate who wants to gain international professional experience and contribute to the work of the European Domestic Agency for ITER? Or who is curious about ITER and simply wants to be part of one of the most ambitious energy projects in the world today? The European Domestic Agency for ITER is looking for graduates in engineering, physics, law, human resources, finance and communication for four to nine months beginning 1 October 2017.

The traineeship program is open to university graduates who are nationals of one of the Member States of the European Union or Switzerland, who have at least a three-year university degree obtained within the last three years, and a very good knowledge of English. Traineeships are offered in Barcelona (Spain), Garching (Germany) and at the ITER site in France.

The deadline to apply is 26 April 2017. Please find all information here.

At the Culham Centre for Fusion Energy in the UK, the central magnet of the new MAST upgrade tokamak was positioned in early March, bringing the project one step closer to the finishing line.

When completed, the MAST upgrade will mark a step-up in performance from the original device, with an increase in magnetic field from 0.52 tesla to 0.78 tesla and in pulse length from 0.5 seconds to 5 seconds. The centre column, completely re-manufactured, is part of the magnetic coil system of the device with the role of inducing current to begin to heat the plasma.

Commissioning should begin this year.

Read the full report on the Culham Centre's website.

For five years, it has been a resource for the plasma physics community. The Helios supercomputer has performed complex calculations for plasma physics and fusion technology, allowing users to draw comparisons between current fusion experiments and run predictive simulations for future devices like ITER.  

Helios has been in operation at the International Fusion Energy Research Centre (IFERC), hosted by the Japanese Atomic Energy Authority (JAEA) since late 2011. IFERC is one of the sub-projects of the Broader Approach agreement signed between Europe and Japan for advanced fusion R&D in complement to ITER.

After a very successful operational campaign, Helios was shut down earlier this year.

Read the full story on the European Domestic Agency website.

--The Helios Supercomputer at the Computational Simulation Centre in Japan (Source: JAEA)

The European tokamak JET is currently in an engineering shutdown phase. But shutdown doesn't mean inactivity—scientists are currently reviewing the 2015-2016 experimental campaign and preparing for the next scientific program, which will include tritium-tritium operation followed by full fusion power experiments using deuterium and tritium in 2019.

The JET remote handling team has taken advantage of shutdown to carry out a photographic survey of the vacuum vessel to inspect the condition of the wall, and to calibrate the detector that measures neutrons using the MASCOT remote handling system—a system allowing operators to undertake a wide range of tasks including welding, cutting, bolting, handling and inspection through a special manipulator that acts almost as the extension of an arm.

Read the full report on the website of the Culham Centre for Fusion Energy (CCFE).

Scientists from the Max Planck Institute for Intelligent Systems, the Max Planck Institute for Solid State Research, the University of Leipzig, Jacobs University Bremen, the University of Augsburg, and the US Department of Energy's Oak Ridge National Laboratory (ORNL) are working collaboratively on a new technique for filtering the fusion fuel deuterium out of the natural isotopic mixture of hydrogen.

Deuterium is obtained from heavy water, which occurs in natural water at a concentration of just 15 parts per thousand. The heavy water is first isolated by a combination of chemical and physical methods, such as distillation, to obtain deuterium gas. The whole process is so intricate and energy-intensive that a gram of deuterium with a purity of 99.8 percent costs around $100, making hydrogen's heavy brother around three times more precious than gold, although deuterium is more than 300 times more abundant in the oceans and Earth's crust than gold.

A metal-organic framework compound presented by the group could make the process easier and less energy-intensive.

Read the full report from ORNL here.

• Energy consumption and selected aspects of the environmental impact of energy production
• Basics of plasma physics and nuclear fusion
• Kinetic and magneto-hydrodynamic description of a plasma
• Concepts and experimental results of tokamak and stellarator configurations
• Plasma heating and diagnostics
• Plasma-wall interaction and materials research
• Safety and environmental aspects of fusion
• ITER and the next steps towards a reactor
• Inertial fusion
• Astrophysical plasmas

Some 4,500 components, large and small, will be shipped to ITER for integration into the ITER cryoplant, which is under construction now on the ITER platform.

Two of the largest were delivered in November 2016 by the European Domestic Agency: 35-metre quench tanks that will store gaseous helium in the case of a magnet quench.

The tanks are formed from an inner stainless steel container that will hold the gas and an outer carbon steel shell that will insulate the inner vessel and keep the temperatures low.

Manufacturered by Air Liquide subcontractor Chart Ferox (Czech Republic) according to ITER Organization and European Domestic Agency requirements, the tanks travelled at night in a long convoy along the ITER Itinerary from the Mediterranean port of Fos-sur-Mer to ITER.

See the full report here (including a 4'10" video).

A physicist at the Culham Centre for Fusion Energy (CCFE) is developing a code to calibrate camera views of fusion experiments.  

For the past two years, Scott Silburn has been leading the development of Calcam, a program for calibrating camera viewing geometry on fusion devices. The program allows the user to match up features seen in the camera images with those on a computer-aided design model from the drawing office at Culham. From this, the position, orientation, and lens properties of a camera system can be determined. This information can then be used to calculate exactly where the camera's lines-of-sight pass through the plasma, and also which locations on in-vessel components correspond to which positions in the image.

An example application of the code is improved positional calibration for JET's high-resolution divertor infrared cameras, which measure the heat loads at the strike points where the plasma interacts with the divertor tiles. The improved information has been used to improve the accuracy of some of the signals from the cameras, and makes it easier to compare the camera data against other diagnostic signals.

An agreable off-shoot of the technique is that it produces interesting images, as seen in the image above (photo credit: CCFE).

Read the original story here.

On 30 January, six large steel elements of the ITER cryostat left the port of Hazira, India for their one-month voyage to ITER.

These are the first segments of the cryostat lower cylinder (tier 1). On site at ITER, assembly activities (welding, testing) for the cryostat base have been underway since September 2016

 

A lot has happened on the construction platform since the ITER 360° virtual tour was released to the website last year with an October data set.

The first ground-level walls of the Tokamak Complex are now visible from afar, the circular bioshield dominates in the centre, and two new buildings—one for radiofrequency heating and the other for cryogenics—are now completely framed out. Elsewhere on site, excavation and early foundation works are underway and the first activities to energize the 400 kV electrical switchyard have been carried out.

The best way to catch up on recent progress is to open the January 2017 update of the 360° virtual tour.

Click here or visit the homepage of the ITER website.

In a recent statement to parliament, the UK government confirmed that—as part of withdrawal from the European Union—the UK would also withdraw from the Euratom Treaty.

On 27 January EUROfusion, which manages European fusion research activities (including the exploitation of the JET tokamak) on behalf of Euratom, issued the following statement: 

Although the withdrawal from Euratom brings in uncertainty to the future of the Joint European Torus (JET), EUROfusion's flagship experiment located at the Culham Center of Fusion Energy (CCFE) in Oxfordshire, the UK government has indicated strong interest in continuing collaboration in nuclear research. "The UK is a world leader in nuclear research and development and there is no intention to reduce our ambition in this important area. The UK fully recognises the importance of international collaboration in nuclear research and development and we will ensure this continues by seeking alternative arrangements," the government said in the statement.

[...] Researchers, engineers and technicians working at JET come from all over Europe, and currently, JET operations receive funding of €69 million, 87.5 percent of which is provided by the European Commission and 12.5 percent by the UK. It is the only existing fusion device capable of operating with the deuterium-tritium fuel, which will be the fusion fuel of the future. And, experiments carried out at JET are important foundations to the fusion experiment ITER, which is currently being built in Cadarache, France. "Naturally, the European fusion community is extremely interested to see a continuation of the JET programme," says Prof. Donné, EUROfusion program manager.

Please see the full statement on the EUROfusion website.

Aix-Marseille University and the ITER Organization are pleased to announce the 9th ITER International School which will be held in Aix-en-Provence, France, from 20-24 March 2017.

This school, held annually either near ITER or in one of the ITER Members, aims at preparing young researchers to tackle the challenges of magnetic fusion devices, and spreading the global knowledge required for a timely and competent exploitation of the ITER physics potential.

This year, the summer school will cover the physics of disruptions and control—one of the key issues for the ITER reactor and burning plasmas in general. Lectures and specialized seminars will cover current developments in theory and experiments, but are also intended to give the basics of the field. Poster sessions allowing participants to show their work are planned. The 2017 ITER school will be a good opportunity for reviewing the recent progresses in this field and promoting the interaction between different branches of plasma physics, computational physics and applied mathematics.

The course is open to PhD students and postdocs aiming to work in the field of magnetically confined fusion, as well as Master students in physics or engineering.

Registration ends on 7 March 2017. For more information, please visit the website.

Editor's note: The first ITER school was organized in July 2007 in Aix-en-Provence, France, and was focused on turbulent transport in fusion plasmas. Five different editions have followed, focused on different subjects: in 2008 in Fukuoka, Japan (magnetic confinement); in 2009 in Aix-en-Provence, France (plasma-surface interaction); in 2010 in Austin, Texas (Magneto-Hydro-Dynamics); in 2011 in Aix-en-Provence (energetic particles); in 2012 in Ahmedabad, India (radio-frequency heating), in 2014 in Aix-en-Provence (high performance computing in fusion science); and in 2016 in Hefei, China (transport and pedestal physics in tokamaks).

Could high-entropy alloys—a combination of different metals in roughly equal concentration—turn out to be THE material for fusion reactors? That's the question materials physicists from the University of Helsinki (Finland) and the Oak Ridge National Laboratory (US) are investigating.

The concept behind the creation of these alloys is ten years old and was first proposed by metallurgists. But based on work done at Oak Ridge, where these new hybrid metals were being tested under the influence of radiation, researchers in Finland began running experiments and simulations using different mixtures with nickel.

High-entropy alloys appear to be much more resistant to radiation than pure alloys. To date, the labs at Oak Ridge and the University of Helsinki have just combined two, three or four elements, whereas millions of possible combinations exist.

See the report on the EUROfusion website.

Specialists from The Welding Institute (TWI) in the United Kingdom visited ITER on 18 January to deliver a workshop to over 70 attendees from across the organization.

Overviews were given on different welding, joining and inspection techniques as well as the benefits and services available to ITER as corporate members of the TWI. Details of previous case studies carried out for both the ITER Organization and the European Domestic Agency were provided to demonstrate the large portfolio of services that can be called on.

During the open discussions there was particular interest from a number of ITER divisions in the potential use of ultrasonic inspection for both thin wall pipes and thick-section plates as an alternative to radiography; auditing of potential/in-contract suppliers; and third party manufacturing process review capabilities. Follow up meetings and initiatives on these and other subjects are anticipated to address the challenging, state of the art manufacturing processes required both at suppliers and on-site to enable the construction and assembly of ITER.

--Paul Edwards, ITER mechanical engineer/blanket manifolds

The EUROfusion consortium welcomed its 30th member in January: Ukraine.

The Ukrainian signatory is the Kharkov Institute for Physics and Technology (KIPT), acting as coordinator for fusion research in seven national universities and research institutes. Fusion infrastructure in Ukraine includes two stellarators and two plasma accelerators, with particular expertise in the areas of plasma-facing components, materials, stellarator research and diagnostics.

The EUROfusion consortium coordinates work within the EUROfusion roadmap, which breaks down the path to the realization of fusion energy into specifically defined missions. Thirty research organizations and universities from 26 European countries plus Switzerland are now members; in addition about 100 Third Parties contribute to the research activities through the consortium members.

EUROfusion collaborates with the European Domestic Agency for ITER and intensively supports the ITER Organization.

Read the full story and find out more about EUROfusion and the European roadmap here.

The latest newsletter from the ASDEX Upgrade tokamak team in Germany reviews the improvements that were made in 2016 to the machine's in-vessel components and heating systems, discusses plans for the 2017 experimental campaign, and highlights the importance ASDEX operation to the achievement of Europe's Roadmap to the Realisation of Fusion Energy.

ASDEX Upgrade, in addition to contributing to the knowledge basis required to operate ITER, is focusing increasingly on issues relevent to DEMO, the next-step fusion device.

Read the December issue of the ASDEX Upgrade here.

At the EAST tokamak in China, five Italian scientists recently joined their Chinese colleagues to participate in a week-long experiment aimed at testing a voltage-driven vertical stabilization system. The successful tests, carried out in the framework of a joint ASIPP-CREATE-ENEA collaboration, were a key step on the way to MIMO (multiple input, multiple output) control of advanced tokamak configurations, capable of decoupling shape control from vertical stabilization.

The new vertical stabilization system implemented and tested on EAST is identical to the one proposed for ITER, and these first tests show that it is compatible with the installation a new ITER-like multivariable shape controller for advanced configurations.

Read more on the ASIPP website.

In 2012 the ITER Organization retained the European company DAHER to provide global transport, logistic and insurance services for the transport of components from supplier factories to the ITER site.

Since that date, DAHER has worked with all ITER Members on their transport needs, including the transport of exceptionally sized loads. The company manages all ITER logistics operations from a control room established in Marignane, France, close to the international airport that services the Marseille region.

In November 2016, the ITER Organization strengthened its ongoing relationship with DAHER with the signature of a new framework contract for the establishment and management of a central distribution centre located at the arrival port for all components shipped by sea (Fos-sur-Mer, France).

A warehouse space of 12,000 m2 has been fully refitted for ITER component storage. The central distribution centre will allow DAHER to match the rhythm of component deliveries to ITER's assembly needs.

Read the DAHER press release here.

Precise conditions are necessary to achieve fusion reactions inside of a high-temperature plasma. In addition to raising the temperature and the density in the core region of the plasma, which is confined by strong magnetic field, it is also necessary to control the edge region to prevent particles from moving in the direction of the vessel wall. 

A precise understanding of this edge region of the plasma—and accurate predictions of its behaviour—is one of the important topics of fusion research around the world.

At the National Institute of Fusion Science (NIFS) in Japan, two researchers have succeeded in running a micro-level simulation of a plasma "blob" in the edge region by using their institute's Plasma Simulator supercomputer.

By marrying the supercomputer's computational capacity with a newly developed calculation program, they were able to calculate the movement of one billion particles. Their research results advance the understanding of the behaviour of the plasma edge and improve prediction accuracy.

See the full article on EurekAlert!/AAAS.

Europhysics News has produced a special issue on nuclear fusion and plasma physics (Volume 47/No 5-6, September-December 2016).

The issue describes the state of fusion research in Europe, how ITER fits into the long-terms goals, and plans for the demonstration reactor after ITER (DEMO).

Highlights include contributions by the head ITER Organization's Science & Operations Department, David Campbell; EUROfusion's Tonny Donné; L.D. Horton from the JET tokamak; and Thomas Klinger from the Wendelstein 7-X stellarator program.

The full issue is available for download on the Europhysics News website.

 

Stefan Gerhardt (left), principal research physicist and head of experimental operations on the National Spherical Torus Experiment-Upgrade (NSTX-U) at the Princeton Plasma Physics Laboratory (PPPL) in the US, has won the Fusion Power Associates 2016 Excellence in Fusion Engineering Award.

The honour, given by directors of the research and educational foundation, recognizes "persons in the relatively early part of their careers who have shown both technical accomplishment and potential to become exceptionally influential leaders in the fusion field." The award was presented on 13 December at the 37th annual meeting of the Fusion Power Associates. 

The group's board of directors cited Gerhardt's "many scientific contributions," including his "recent work on predicting plasma disruptions, which will provide major benefit to ITER and other major fusion experiments, and the leadership you provided and are providing."

Read the full announcement on the PPPL website.

Even the greatest performers need rehearsals ... and JET is no exception. Scientists and engineers at the world's largest operating tokamak have been preparing for JET's next starring role — a run of tests using the high-power fuel mixture of deuterium and tritium (D-T).

The deuterium-tritium combination is the one that will be used to gain maximum fusion output in ITER and in the first fusion power stations that will follow it. JET is the only present-day fusion machine that can use tritium and therefore has a vital role in preparing for ITER operations.

As a radioactive substance, and one that is in short supply, tritium is not used very often at JET. Most research is carried out with deuterium only (the last operations with tritium were in 2003). However new campaigns of both T-T and D-T experiments are planned in 2018 and 2019 to give the best simulation yet of how fusion plasmas will perform in ITER.

The D-T rehearsal at JET during this summer and autumn aimed to simulate the operating environment for the tritium campaigns. With 13 years since the last tritium experiments, many of the systems and the people working on them have changed. The rehearsal was an ideal opportunity to test procedures for using tritium, train staff and iron out any flaws ahead of the real thing.

See video interviews on the rehearsal experience at CCFE (Culham Centre for Fusion Energy).

The FOM Institute DIFFER, in the Netherlands, is starting a large research program to investigate one of the most fundamental difficulties in designing the fusion reactors of the future—how to protect the solid vessel from the intense heat and neutron bombardment of the reaction, especially in the divertor region which "exhausts" the plasma.

The research program "Taming the Flame" is supported by strategic funding from Foundation FOM (Fundamental research On Matter).

Nine new researchers (seven PhD positions and two postdoc positions) will be recruited to work in an integrated approach together with DIFFER's existing scientific staff. 

"In a fusion power plant, even a sturdy metal wall with a high melting point will not be able to resist the plasma," says DIFFER's head of fusion research Marco de Baar. "In our research program, we want to already start managing the heat load inside the plasma, and bring the energy to the wall in a controlled way." The research will focus on controlling and diluting the plasma before it reaches the wall, and on the novel concept of a self-repairing exhaust wall, with a liquid metal layer flowing over and protecting the solid reactor wall.

A key experiment in the program is DIFFER's linear plasma generator Magnum-PSI, the only laboratory facility in the world capable of examining materials exposed to the intense plasma conditions at the walls of future fusion reactors. In addition, the team will test their research at existing fusion experiments in Germany, Switzerland and the UK.

Read the full press release on the DIFFER website.

The European Domestic Agency for ITER has awarded a contract to Equipos Nucleares SA (ENSA, Spain) for the supply of two holding tanks and two feeding tanks for ITER's water detritiation system. When manufactured and installed in the basement of the Tritium Plant, they will join six other tanks, also supplied by Europe, that were installed earlier in the year.

The water detritiation system at ITER will remove tritium from process water during plant operation and recycle it as fuel.

See the news here.

For the first time in twenty years, a tokamak will experiment with nuclear plasmas. Ian Chapman, the recently appointed UKAEA Chief Executive confirmed in a Newsline interview that "JET will be operating with tritium again in 2018, and then operating with a deuterium-tritium mix in 2019."

This video takes you into the innards of the European machine, which is presently the largest in the world.

After four years of non-stop work, the French tokamak Tore Supra has now become WEST,the tungsten (W) Environment Steady-state Tokamak. Equipped with an actively cooled tungsten divertor and additional power, experiments at WEST will provide precious data on operation in a tungsten environment in advance of ITER operation.

Considerable modification to the machine's internal elements has been carried out. New components have all been installed in the vacuum vessel (divertor coil windings, protection panels, antennas, diagnostics, tungsten plasma-facing components) and the chamber has now been closed for final commissioning before plasma operation.

The transformation mobilized more than one hundred people: staff from the Institute for Magnetic Fusion Research (CEA-IRFM) and also WEST partners, in particular Chinese and Indian on-site collaborators.

Following the upcoming divertor coil impregnation and integrated commissioning, WEST will embark on its scientific life focused on the preparation of ITER divertor operation.

Photo © Christophe Roux-CEA

More on this story in the November issue of the WEST Newsletter.

 

The 2015-2016 experimental campaign at the JET tokamak, Europe's flagship device, came to an end on 15 November with nearly all goals met, according to a recent article published on the EUROfusion website.

Highlights included rehearsing the procedures for future tritium-tritium and deuterium-tritium experiments; running a hydrogen campaign during which physicists learned about the dependence of plasma parameters on the mass of the hydrogen fuel used; and the high-power deuterium campaign. 

This success means that JET is right on track for the tritium-tritium and deuterium-tritium experiments planned for upcoming campaigns, which are expected to provide important results for the operation of ITER.

JET will restart operations in 2017.

Read the full article on the EUROfusion website.

The Radiation Transport Group at Oak Ridge National Laboratory (ORNL) has won a prestigious award through the US DOE Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program for radiation shielding model for ITER.

The project, titled "Safe fusion energy: predictively modeling ITER radiation shielding," has been awarded 80 million computer processor hours on the Titan Cray XK7, the most powerful supercomputer in the US for open science.

INCITE awards are given annually to projects that represent "the biggest challenges in science and engineering today, and can't be done anywhere else."

Investigators Seth Johnson, Thomas Evans, and Stephen Wilson propose a radical solution for accurately modelling ITER's shielding design at an unprecedented level of detail and scale.

Read more about the INCITE program and the 2016 winners here.

Less than one year ago, last December, the ITER Organization signed a large supply contract with W. Schulz GmbH in Germany for the procurement of piping materials. The scope covers up to 65 km (1,800 tonnes) of pipes and 43,000 units (250 tonnes) of fittings. 

The first shipment of pipes and fittings under this contract was delivered late October to the ITER worksite. It was the inaugural delivery of a broad ITER Organization-Domestic Agency program for the centralized procurement of piping materials for the component (CCWS), chilled (CHWS), and tokamak cooling water systems, expected to play out over five years.

Thirty-three tonnes of material were delivered, including 450 metres of stainless steel seamless pipes and 350 stainless steel fittings such as tees, elbows and reducers. The material will be stored in ITER's largest warehouse on site until needed for installation.

 

Some of the most detailed images ever of a hot plasma inside a tokamak have been captured at MAST, the spherical tokamak device at the Culham Centre for Fusion Energy (CCFE) in the UK.

At 100,000 frames per second, the movies from the MAST device give a vivid illustration of how tokamaks keep fusion fuel trapped in a magnetic cage, with particles moving around magnetic field lines and resembling a large spinning ball of wool.

If only it were that simple; in reality, a magnetically-confined plasma is a highly complex system, and predicting how it behaves is key to making nuclear fusion a viable energy source. In particular, knowing how the hot fuel affects the cold walls of the machine is integral to ensuring that future reactors survive.

Turbulence in the magnetic field throws out wispy bunches of particles—known as filaments—from the plasma in a seemingly random fashion, ejecting fuel which touches the surfaces of the tokamak. Researchers are now working to unravel meaning within this randomness to understand this complex interaction with the machine walls, and videos such as these can give them pointers to what is happening.

Nick Walkden of CCFE's Theory & Modelling Department, who produced the videos, explains: "We believe that filaments are a vital part of the 'exhaust process' within a tokamak—how particles are expelled from the plasma. Seeing the MAST plasma at this unprecedented level of detail enables us to image individual filaments and measure their size, velocity and position within the plasma. It tells us a lot about their physics so we can find out how to predict their motion and, in future experiments, possibly learn to control them."

Read the full article at CCFE. 

Physicist Richard Hawryluk of the Princeton Plasma Physics Laboratory (PPPL) has been named chair of the board of editors of Nuclear Fusion.

Current head of the ITER and Tokamaks Department at PPPL and former Deputy Director-General of Administration at ITER, Hawryluk has been a member of the editorial board at Nuclear Fusion since 2009. In his new role as chair he will provide policy oversight and support to the journal's editor.

From 1991 to 1997 he headed the Tokamak Fusion Test Reactor (TFTR) project, the only magnetic confinement fusion experiment in the US to have operated on a high-power mix of deuterium and tritium. He was also deputy director of PPPL lab from 1997 to 2009, before taking over the running of the ITER and Tokamaks Department.

Europe is responsible for the largest portion of ITER construction costs (45.6 percent); the remainder is shared equally by China, India, Japan, Korea, Russia and the US (9.1 percent each). 

On 24 October, six Members of the Industry, Research and Energy Committee of the European Parliament spent the day at ITER, meeting the ITER Director-General, visiting the design offices and the construction site, and exchanging with staff and contractors from the European agency for ITER, Fusion for Energy on project progress and upcoming milestones.

Read the full article on the European Domestic Agency website.

Following a four-year upgrade to double the magnetic field strength, plasma current and heating power capability of the NSTX spherical tokamak, located at the Princeton Plasma Physics Laboratory in the US, researchers reported on the first ten-week operational campaign at the recent IAEA Fusion Energy Conference in Kyoto, Japan.

Important results included increased pulse duration and maximum magnetic field strength; achievement of the optimum H-mode regime; success in reducing plasma instabilities through a second neutral beam injector; and commissioning all magnetic diagnostics.

Read the full report at PPPL.

Professor Paul Vandenplas, emeritus professor of the Royal Military Academy in Brussels, Belgium and longtime proponent of nuclear fusion, has passed away at age 84.

In the course of his illustrious career he was director of the association "EURATOM-Belgian State" for controlled nuclear fusion; acted in the role of president of the EURATOM Fusion programme committee and vice-president of its advisory committee; served on the governing board of the JET tokamak; and played a role in the site negotiations for the ITER Project. He was also the director/founder of the Laboaratory for Plasma Physics ERM/KMS

In 2014 he was honoured for his contributions to fusion research with the Minerva Prize (Förderverein Museum Jülich e.V.). Professor Vandenplas was also Grand officer of the Order of the Crown, Officer and Grand Officer of the Order of Leopold II, and Knight.

One month ago, on 30 September, the ITER Organization signed a technical Cooperation Agreement with Australia, as represented by the Australian Nuclear Science and Technology Organisation (ANSTO). ANSTO CEO Adi Paterson had the opportunity to report on the Agreement to the Australian Parliament on 20 October. See the official recording here (Senate Economics Legislation Committee, 15:07:00).

At the Dutch Institute for Fundamental Energy Research (DIFFER) research focuses on two major energy themes: fusion energy, and the conversion and storage of sustainable energy in solar fuels. In this first issue of the DIFFER newsletter EXPLORE, launched in October, read all about the different experiments underway.

The European Domestic Agency has published a short flyover of the ITER worksite that was filmed in early October.

Click here to see the latest progress on the Tokamak Complex and the work that is advancing on the ITER Cryoplant Building, the cooling tower area, and the Magnet Power Conversion Building area.

The 26th IAEA Fusion Energy Conference kicked off today in Kyoto, Japan.

The biennial rendezvous for fusion researchers from over 40 countries, the conference aims to highlight worldwide advances in fusion theory, experimental results, technology, engineering, safety and socio-economics.

ITER Director-General Bernard Bigot spoke on the first day, presenting the progress in ITER construction, manufacturing and R&D to an audience of scientists, engineers, policy makers, and representatives of industry.

Over 1,000 visitors are expected during the six-day event, hosted this year by the Government of Japan and organized by the International Atomic Energy Agency in cooperation with the Japanese National Institute for Fusion Science (NIFS).

At the ITER stand, visitors will have the occasion to experience a virtual reality tour of the ITER construction site (Oculus Rift) and admire a Lego tokamak designed and built by students from Kyoto University.

IAEA Director General Yukiya Amano (here with ITER's Julie Marcillat) was one of the first visitors to the ITER stand on Monday 17 October.

The Mega Amp Spherical Tokamak (MAST) facility at Culham Centre for Fusion Energy (CCFE) in the UK is undergoing a major upgrade that, once completed, will allow it to add to the knowledge base for ITER and experiment with candidate technological solutions for future fusion power reactors.

The upgrade will permit longer pulse lengths, improved neutral beam heating, and new features to improve plasma profile control and the study of plasma instabilities.

Recently, progress on the largest sub-system—neutral beam heating—was made as the internal components were installed into two neutral beam injector vacuum vessels. The team is now on schedule to have both beamlines finished by the end of the year.

More information here: CCFE

At a specialized laboratory in Germany, electrical tests have been successfully performed on a 1/15th scale mockup of the high voltage deck planned for MITICA, the ITER-sized neutral beam injector that will be tested in advance of installation on ITER at the PRIMA neutral beam test facility in Italy.

Positioned on four large gas-insulated columns at six metres above the floor, the 4 x 4 x 4 metre mockup was subjected to high voltage testing in order to validate the design choices of the European Domestic Agency supplier SIEMENS AG.

In a 24-hour period, the mockup passed one long-duration test (5 hours at 1.2 million volts DC) and several short-duration tests (impulses of 50 micro-seconds at 2.1 million volts). The tests were designed to verify that the deck will sustain the different voltage levels that are expected during MITICA operation.

Read more about the high voltage tests on the European Domestic Agency website. For more on PRIMA, click here.

A new acronym is making its way into the fusion landscape: DONES, for DEMO Oriented Neutron Source.

In Europe, a roadmap* for the realization of fusion energy was published in 2012 that breaks down the quest to supply fusion electricity to the grid into eight missions. One of these is to investigate and select neutron-resistant materials for DEMO, the demonstration fusion reactor that—according to the European strategy—is the step between ITER and a commercial fusion power plant.

More powerful than ITER and connected to the grid, DEMO will require materials capable of withstanding a stronger flux of neutrons for longer periods.

Currently three R&D projects carried out with the framework of a scientific collaboration between Europe and Japan (the Broader Approach) are contributing to the design of DEMO. The engineering design and validation activities for the International Fusion Materials Irradiation Facility (IFMIF/EVEDA) are evolving successfully. But when its operation will come to an end, DONES, a future version of IFMIF, will take over and help the scientific community to perform tests and start collecting data.

Designed to mimic the conditions of neutron irradiation in DEMO, DONES would allow scientists to test materials and characterize candidate fusion materials.

Three European countries—Croatia, Poland and Spain—have expressed interest in hosting the facility. In September, the European Domestic Agency for ITER, which acts as a coordinator for the European activities of the Broader Approach, invited representatives from all three to a technical information session in Barcelona to explain the scope of DONES, outline preliminary technical specifications, and discuss the different steps leading to the submission of applications.

Read the full article on the European Domestic Agency website.

*The "Roadmap to the realisation of fusion energy" was published by EFDA (the European Fusion Development Agreement, superseded in 2014 by EUROfusion).

In the Poloidal Field Coil Winding Facility, on site at ITER, fabrication of a qualification mockup of poloidal field coil #5 (17 metres in diameter) began in September.

Click here to view a timelapse video produced by the European Domestic Agency for ITER. More information on the manufacturing process here.

At the Srednenevsky shipyard, on the Neva River near Saint Petersburg (Russia), manufacturing work is underway on ITER's poloidal field coil, #1 (PF1).

Click here to view the different stages of fabrication of this 200-tonne component, the smallest of ITER's six ring-shaped magnets. (ITER Russia)

 

The Japanese Domestic Agency has delivered a large number of books and teaching materials to the Japanese section of the Provence-Alpes-Côte d'Azur International School (EIPACA), which caters to the families of ITER staff as well as to the regional population.

This is the third book donation made by ITER Japan to the Japanese language section and its pupils since the school opened in 2007. The school currently hosts six language sections (Chinese, English, German, Italian, Japanese and Spanish), where teaching is divided between the host language (French) and the language of the section.

The books were presented in a ceremony on 30 September by the head of the ITER Japan Liaison Office, Katsumi Nakajima, to school director Bernard Fronsacq.

For the third year in a row, the Swiss Plasma Center is offering a free Massive Open Online Course (MOOC) on plasma physics.

The popular class is divided into two parts--the basics of plasma physics, followed by applications of plasma physics (including fusion). Students can follow the segment sequentially, at their own pace, or begin with the more advanced course.

The class, which begins on 13 October, is given in English by plasma physicists from the Swiss Plasma Center.

More information here.

Prof. Stewart Prager, a world-renowned plasma physicist and passionate voice for a future of clean, abundant and benign energy fueled by fusion, has stepped down from the directorship of the national laboratory he has headed for the last eight years. [...]

Prager, the sixth director in the 65-year history of the Princeton Plasma Physics Laboratory (PPPL), joined the lab in the fall of 2008 after a long career at the University of Wisconsin. A pioneer in plasma physics, he is internationally known for experiments that contribute to the fundamental knowledge of fusion energy and the design of devices that will produce it.

Read the full article on the PPPL website.

The last shipment of cryostat base segments (three segments/120 tonnes each) left Hazira, India on 2 September. Prior to being shipped, on 16 August, a flag-off ceremony was held at the Larsen & Toubro Ltd plant, where the cryostat segments are being manufactured. With this shipment, due to reach France after a month-long sea journey, India has completed shipment of all major pieces of the cryostat base (tier-1 and tier-2). Welding operations for Tier 1 of the cryostat base have already begun on the ITER site.

Marconi-Fusion, the new high performance computer for fusion applications, was inaugurated on 14 September 2016 at the CINECA headquarters in Bologna.

Supercomputing is an important aspect of nuclear fusion research as it plays a crucial role in the modelling of the plasma and materials, validating the experimental results of fusion devices and designing the next-generation fusion machine DEMO. Marconi Fusion should be capable of a total computational power of around 6 petaflop per second, thanks to the modern generation of Intel Xeon processors. A petaflop means 1015 operations per second... a total of a one quadrillion head-spinning calculations simutaneously. 

The goal of this system will be to provide a common high performance computing platform for European fusion researchers.

In 2015 EUROfusion's highest decision-making body, the General Assembly, selected the Italian research unit ENEA along with CINECA, the largest Italian computing centre, to develop and run the new system.

The supercomputer was named after Guglielmo Giovanni Marconi, the inventor of wireless communication, who was born in Bologna in 1874. 

Source: EUROfusion

From 28 April to 4 May 2017, the Ettore Majorana Foundation in Erice, Sicily, will host the 16th edition of the International School of Fusion Reactor Technology (ISFRT16).

The course will cover areas of interest to the magnetic fusion confinement (tokamak, stellarators), inertial confinement, and plasma physics scientific communities, with particular focus on developments in diagnostics and technology in view of ITER and the machine that comes after ITER, DEMO.

ISFRT16 is open in particular to students and researchers wishing to enter this new field. Lectures will cover current developments in theory and experiments but are also intended to give the basics of the field. Poster sessions are planned to allow participants to show their work.

Registration ends on 28 February 2017. More information on the conference website.

At the Srednenevsky Shipbuilding Plant in Russia, technicians have completed the winding operations for the first poloidal field double pancake—one of eight double pancakes that will be stacked to form ITER's smallest ring magnet, poloidal field coil 1 (PF1).

During the next stage in the manufacturing process, the completed pancake will be impregnated with epoxy resin. The resin hardens the glass tape that is wrapped around the conductor to bind the double pancake into a rigid assembly. Following the successful manufacturing readiness review for the technique, called vacuum-pressure impregnation, impregnation activities on the first PF1 pancake will begin in October.

ITER's poloidal field coils are fabricated from niobium-titanium superconductor, which becomes superconducting at super-low temperatures.

Of ITER's six poloidal field coils, PF1 is the first to proceed to the impregnation stage of the fabrication process, which involves winding and impregnating each double pancake before forming the final assembly.

More on the poloidal field magnets here.

Image: The winding table at the Srednenevsky Shipbuilding Plant.

Temperatures of over hundred million degrees centigrade and high energy neutrons and alpha particles that blast everything to shreds. What materials can withstand the harsh conditions in fusion reactors? TU Delft researcher Inês Carvalho set out to discover.

Follow this link to the article.

Source: Technische Universiteit Delft.

On Saturday 10 September, close to 450 participants met near ITER, in Vinon-sur-Verdon, for a number of sporting events designed to create and reinforce ties between people working on the ITER Project and neighbours from the surrounding villages. The 2016 edition of the ITER Games offered a broad choice of sporting disciplines for all levels, including football, cross-country running, mountain biking, kayaking, tennis and petanque. The competitions were followed by a bucolic lunch and an afternoon of family activities.

The last of three electrical transformers have successfully passed factory acceptance tests in China and are ready for shipment.

China is responsible for procuring ITER's pulsed power electrical network (PPEN), which will feed power to the heating and control systems during plasma pulses.

As part of the procurement package, three massive PPEN transformers (15 metres tall, 460 tonnes when completely fitted out) have been manufactured by supplier Baodin Tianwei. The first of these reached the ITER site in June 2016; now, following the successful completion of factory acceptance tests, the last two are ready for shipment.

--ITER China

For the third year in a row, representatives of the ITER Domestic Agencies of China, Japan and Korea met to report on progress in the procurement and manufacturing of ITER components and exchange on technical issues. Nearly 60 participants were present for the workshop which was held from 27 to 28 July at the Haeundae Grand Hotel in Busan, Korea.

Openings made by representatives from each government were followed by reports on manufacturing progress achieved since the last trilateral meeting, including progress on components for the ITER blanket, the divertor, the test blanket systems, magnets, the vacuum vessel and diagnostics. Focus discussions took place on forward-looking topics such as warranty after delivery, on-site installation work at ITER and the potential for further collaboration.

Participants also visited the Hyundai Heavy Industry workshop (pictured) in Ulsan, Korea, where manufacturing is underway on segments of the ITER vacuum vessel and toroidal field coil structures.

A fourth China-Japan-Korea trilateral workshop is planned next year in China.

The Princeton Plasma Physics Laboratory (PPPL) has been named principal investigator for a multi-institutional project to study plasma-materials interaction on the EAST tokamak in China. The experiments will be designed to test the ability of lithium to protect the EAST walls from the hot plasma and to prevent impurities from bouncing back into the core of the plasma and halting fusion reactions.

Success could point to a method for optimizing long-running plasmas.

PPPL will use devices called flowing liquid lithium limiters and granule injectors, as well as optimization of coating techniques, to protect the plasma-facing components. PPPL has experience with applying lithium to its National Spherical Torus Experiment (NSTX), which has recently been upgraded, and at the Lithium Tokamak Experiment (LTX), a small, short-pulse complementary experiment at the laboratory that explores the effect of a liquid-lithium boundary on the plasma.

See the full article on the PPPL website.

--Photo of the interior of EAST vacuum vessel.

"Chirp, chirp, chirp." The familiar sound of birds is also what researchers call a wave in plasma that breaks from a single note into rapidly changing notes. This behaviour can cause heat in the form of high energy particles—or fast ions—to leak from the core of plasma inside tokamaks.

Physicists want to prevent these waves from chirping because they may cause too many fast ions to escape, cooling the plasma. As the plasma cools, the atomic nuclei in the tokamak are less likely to come together and release energy and the fusion reactions will sputter to a halt. 

"Chirping modes can be very harmful because they can steal energy from the fast ions in an extended region of the plasma," said Vinícius Duarte, a graduate student from the University of São Paulo. Duarte is at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) conducting research for his dissertation. 

Chirping modes have been studied for decades as physicists seek to understand and eliminate them. In a recent theoretical study, Duarte discovered some conditions within plasma that can make the chirping of modes more likely. A paper he is preparing on this topic explains the phenomenon and may help to optimize the design of fusion energy plants in the future. 

See the full article on the PPPL website.

Magnetic fusion energy and the plasma physics that underlies it are the topics of ambitious new books by Hutch Neilson, head of the Advanced Projects Department at the Princeton Plasma Physics Laboratory (US), and Amitava Bhattacharjee, head of the Theory Department at the Laboratory. 

The books describe where research on magnetic fusion energy comes from and where it is going, and provide a basic understanding of the physics of plasma, the fourth state of matter that makes up 99 percent of the visible universe.

The volume Magnetic Fusion Energy: From Experiments to Power Plants, edited by Neilson and published in June, introduces early career researchers to the current body of fusion work and points the way to breakthroughs still to be achieved. Bhattacharjee's book, the second edition of the text Introduction to Plasma Physics co-authored with Donald A. Gurnett of the University of Iowa, keeps pace with the fast- and ever-changing field. New topics in the book, which will be out this fall, range from tearing modes in fusion plasmas to particle acceleration by shocks to the magnetorotational instability in accretion disks that surround celestial bodies.

See the original announcement here.

The Princeton Plasma Physics Laboratory (PPPL) has just released the annual edition of Quest, the laboratory's research magazine. This fourth edition highlights research underway on the recently upgraded spherical tokamak experiment NSTX-U.

Download the summer 2016 edition here.

Plasma—the hot ionized gas that fuels fusion reactions—can also create super-small particles used in everything from pharmaceuticals to tennis racquets. These nanoparticles, which measure billionths of a metre in size, can revolutionize fields from electronics to energy supply ... but scientists must first determine how best to produce them.

After more than two years of planning and construction, the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) has commissioned a major new facility to explore ways to optimize plasma for the production of such particles. The collaborative facility, called the Laboratory for Plasma Nanosynthesis, is nearly three times the size of the original nanolab, which remains in operation, and launches a new era in PPPL research on plasma nanosynthesis. Experiments and simulations that could lead to new methods for creating high-quality nanomaterials at relatively low cost can now proceed at an accelerated pace.

Nanomaterials exhibit remarkable strength, flexibility and electrical conductivity. Carbon nanotubes, found in sporting goods, body armor, transistors and countless other products, are tens of thousands of times thinner than a human hair and stronger than steel on an ounce-for-ounce basis.

Plasma could serve as an ideal substance for synthesizing, or producing, nanomaterial. The new laboratory will study so-called low-temperature plasmas that are tens of thousands degrees hot, compared with fusion plasmas that are hotter than the 15-million-degree core of the sun. These low-temperature plasmas contain atoms and free-floating electrons and atomic nuclei, or ions, that can be shaped by magnetic fields to provide reliable, predictable and low-cost synthesis of tailored nanoparticles.

Read the full article at PPPL.

-- Photo: Elle Starkman/PPPL

A delegation led by Zhao Jing, deputy head of the Chinese Domestic Agency, delivered some 40 kgs of textbooks and teaching materials to the Chinese section of the Provence-Alpes-Côte d'Azur International School on Friday 8 July.  

Since its opening in September 2007, virtually all the children of ITER families and many local pupils of both European and non-European nationalities have attended the International School, which provides a bilingual curriculum. The school's pedagogical structure currently comprises six section languages (Chinese, English, German, Italian, Japanese and Spanish), operating on the principle of parity (French language/section language). Furthermore, from the "collège" level (junior high school), the English speakers students can be enrolled in the English section of European teaching, where the courses are taught in English at 80%.

School director Bernard Fronsacq is pictured at centre.

The call to send in proposals for the next round of EUROfusion Researcher Grants is now out. The deadline is 8 September 2016. Detailed information about eligibility and the selection procedure is available for download here.

A core function of EUROfusion, which manages and funds the European research activities, is to coordinate the training and education activities for European fusion research. The aim is to invest in building a strong fusion community that will not only continue to advance fusion research but also play a vital role in the future when fusion energy is realized. EUROfusion supports PhD and pre-doctoral candidates working on fusion research and has established research and engineering grants to fund the training of fusion engineers and scientists every year.

Two types of grants are offered: EUROfusion Research Grants, which support about ten post-doctoral researcher or equivalent for up to two years; and EUROfusion Engineering Grants, which provide funding for around 20 engineers for a period of three years.

The advanced technology that will be required in the pursuit of fusion energy will require the use of beryllium and other specialized, high-performance materials.

A few days before the 29th Symposium on Fusion Technology (SOFT 2016) opens in Prague this year, a group of specially chosen experts from the fields of science, technology, politics, economics, and media will gather in Berlin, Germany to discuss beryllium applications at BeYOND (Beryllium Opportunities for New Developments).

More information here.

The latest edition of Fusion in Europe is now available from EUROfusion, the consortium of 29 research organization and universities from 26 European countries plus Switzerland. Updates on the operational campaigns of three European tokamaks and one stellarator, upgrades underway on fusion devices in the UK and France, news from the world of materials research and high performance computing for fusion ... all this and more can be found in the June issue.

Visit the EUROfusion website here.

Four turbines produced for ITER's liquid nitrogen (LN2) cryogenic plant have successfully passed factory acceptance testing and will be delivered to ITER this autumn.

One oil brake turbine and one turbine booster will be installed in each of the cold boxes of the LN2 plant, which is under European procurement.

The liquid nitrogen plant and auxiliary systems will cool down, process, store, transfer and recover the cryogenic fluids of the machine. Two nitrogen refrigerators will be delivered along with two 80 K helium loop boxes, warm and cold helium storage tanks, dryers, heaters and the helium purification system.

In spite of the small diameter of the turbines—not exceeding 15 cm—these tiny pieces of equipment will generate enough cooling power to keep the ITER thermal shields extremely cold. It took Air Liquide contractor Cryostar (France) eight months to complete fabrication.

Image: One turbine booster, fully assembled for factory testing.

See the original article on the European Domestic Agency website.

Latin America's first stellarator was officially inaugurated on 29 June 2016.

The small SRC-1 stellarator device was planned and built by the Plasma Laboratory for Fusion Energy and Applications, which belongs to the Costa Rica Institute of Technology (TEC) in Cartago.

The countdown for producing the first plasma was started by a high-ranking government representative from Costa Rica and the TEC President and was witnessed by guests from science and politics. Electronic congratulations had been sent by representatives of international stellarator research from Princeton (US) and IPP at Greifswald (Germany) to mark the advent of the new device.

"Our work is to serve future generations," stated Institute Director Iván Vargas. "If research like this continues to evolve, in the future this technology could be used at a power plant that would take alternative energy to our communities."

The Plasma Laboratory for Fusion Energy and Applications was founded six years ago. It covers the fields of plasma medicine, industrial plasma technology and fusion research. Work hitherto had been concentrated on the small MEDUSA-CR device (Madison Education Small Aspect ratio tokamak), which was taken over from the University of Wisconsin-Madison, and on the preparation of the SCR-1 stellarator.

The investment costs for SCR-1 came to USD 500,000. The plasma vessel and modular coils were made in Costa Rica. The small device aims to attain plasma temperatures of 300,000 degrees Celsius. Latin America's first stellarator now joins the ranks of the stellarators in Australia, Germany, Japan, Spain and the USA.

Source: Max-Planck-Institut für Plasmaphysik, IPP

In June, the Budker Institute in Russia was host to two meetings on ITER diagnostics, with at least 70 international specialists attending.

The members of the Diagnostics Topical Group, ITPA (International Tokamak Physics Activity) met for the 30th time to discuss a range of internationally coordinated research areas that are important to the development of ITER and fusion diagnostic systems. Topics included progress on diagnostic mirrors, which must withstand conditions close to the high-temperature plasma; diagnostics for alpha particles; plasma wall reflections; and plasma control. In parallel, a meeting on port integration reunited several Russian organizations that are—like the Budker Institute—involved in the engineering integration of diagnostics into the ITER port plugs.

In addition to diagnostic engineering, the Budker Institute plays a key part in the development of high-tech electron equipment, research into the investigation of high-temperature plasma on first-wall materials, and the development, manufacturing, and testing of equipment for the ITER machine.

Michal Walsh, head of the Port Plugs & Diagnostics Integration Division at ITER, toured the host facilities in the company of the ITPA members. "Given the technical potential of this research centre and our successful cooperation to date, I look forward to continued cooperation in the future."

-- Alla Skovorodina, Budker Institute

Three additional ITER cryostat segments have arrived in the port of Fos-sur-Mer after a one-month voyage from India.

The 60° segments make up half of Tier 2 of the cryostat base (three other Tier 2 segments are due at a later date). The 120-tonne components have been unloaded in Fos in preparation for their delivery to the ITER site this week (weather permitting) along the ITER Itinerary.

Each 96-wheel transport trailer will carry a protected load that is just over 14 metres long and six metres wide.

In a tokamak fusion reactor, the plasma causes intense heating of the divertor, similar to that encountered by a space shuttle when it re-enters the Earth's atmosphere. The belly of the shuttle must be protected by special heat tiles. In the same way, the divertor surface is made of small tungsten tiles that are tilted at a grazing angle with respect to the plasma stream. The edges of the tiles, like the nose and wings of the shuttle, are subject to very intense heat flux...

Read more on the shaping of the plasma-facing components, and many other subjects, in issue #13 of the WEST Newsletter.

At Cadarache (south of France), the Institute for Magnetic Fusion Research (CEA/DSM/IRFM) is modifying the Tore Supra plasma facility to become a test platform open to all ITER partners. WEST stands for W (tungsten) Environment in Steady-state Tokamak. 

"The proponents of fusion power have for years been promising us a plentiful and relatively safe form of new energy. Well here, at ITER in France, they are starting to make good on that promise."

So begins the 30-minute documentary film on ITER and fusion that aired this past weekend on BBC Horizons.

Presenter Adam Shaw visits ITER in the south of France as well as labs around the world (Germany, US and Canada) to learn more about the "tantalizing possibility" of fusion and its chance at transforming the world's relationship with energy. 

From outside the UK view the program here (inside the UK, watch here).

With transparent skies and 300 days of sunshine a year, the tiny Alpine village of Saint-Véran (alt: 2,042 metres) offers a unique viewpoint on our own familiar fusion furnace. In the 1970s professional astronomers from the Observatoire de Paris used it to observe the Sun's corona with instruments they eventually donated to the village.

Walking in the scientists' footsteps, the local population soon developed a passion for solar astronomy—an amateur club was created, more instruments were acquired through donations and the municipality soon decided to capitalize on its privileged relationship with the Sun.

La Maison du Soleil was inaugurated on Thursday 9 June in the presence of French Vice-Minister for Higher Education and Research, Thierry Mandon, and of ITER Director-General Bernard Bigot.

Designed for the general public, La Maison du Soleil will organize exhibits, conferences and solar observations. Nuclear fusion and ITER are of course part of the permanent exhibit, with posters, panels ... and even a conductor sample provided by the ITER Magnets Division.

Saint-Véran is located in the heart of the Queyras Regional Park, two-and-a-half hours north of ITER.

The third edition of Introduction to Plasma Physics and Controlled Fusion by author Francis F. Chen is now available from Springer (follow this link). In addition to updates in all chapters, the 2016 release includes new chapters on special plasmas and plasma applications.

A recent Chinese version of the 1973 edition of the book is also available here.

While the fusion community continues its quest to harness fusion for energy needs, numerous spin-off benefits are resulting from the research carried out all over the world.

Given its complex, multidisciplinary nature, it should be no surprise that fusion research has driven advances in disciplines ranging from medical technology and environment to astrophysics and material sciences. EUROfusion, the European Consortium for the Development of Fusion Energy, has identified some of these spin-offs and put together a non-exhaustive list that demonstrates the short-term benefits of fusion research on the way to fusion electricity.

Read more about them on the EUROfusion website or download an infographic.

Two types of cameras will be needed inside of the ITER vacuum vessel to support inspection and maintenance operations—oversight cameras that give engineers a broad view inside the vacuum vessel, and cameras embedded on tooling or robotics for a view inside tightly confined spaces.

The European Domestic Agency for ITER is working with industry to develop purpose-built equipment small enough to fit into tight space constraints and capable of withstanding the harsh conditions close to the plasma.

In a project called FURHIS (for FUsion for Energy Radiation Hard Imaging System), Europe is collaborating with Oxford Technologies (UK) to produce mockups of sub-systems that will soon be tested in a radiation environment. Working with French laboratories ISAE (image sensors), CEA (LED illumination system), and Université Jean Monnet (optic system), a 15 mm mockup—small enough to fit inside a one euro coin—has been developed.

The FURHIS sub-systems will now be tested at the Belgian Nuclear Research Centre SCK•CEN.

Read the original story on the European Domestic Agency website.

Ronald C. Davidson, a pioneering plasma physicist for 50 years who directed the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL) during a crucial period of its history and was a founding director of the Plasma Fusion Center at the Massachusetts Institute of Technology (MIT), passed away on 19 May at his home in Cranbury, New Jersey. He was 74.

"Ron was an anchor for the Laboratory both through his science and through his wisdom," said Stewart Prager, director of PPPL. "His prodigious contributions not just to PPPL's science but also to plasma physics writ large are clear and widely known. Within the Laboratory, he was a mentor and a guide to people young and old. His impact within the Laboratory was enormous."

The physicist won numerous honours in his lifetime, including the prestigious James Clerk Maxwell Prize in Plasma Physics in 2008, the highest national honour in plasma physics. He was a fellow of both the American Physical Society and the American Association for the Advancement of Science. Davidson was known as a prolific researcher, writer and academic.

Read the full-length obituary on the PPPL website.

New computer simulations at the Princeton Plasma Physics Laboratory (PPPL) indicate that an innovate start-up technique for tokamaks, called coaxial helicity injection (CHI), may support a strong electric current without a traditional solenoid magnet.

In tokamaks, a complex web of magnetic fields control the superhot plasma. In addition to large D-shaped magnets surrounding the vacuum vessel, a central electromagnet known as a solenoid participates in creating the twisting vortex that prevents the plasma from touching the tokamak's walls.

Compact spherical tokamaks, like the NSTX-U recently dedicated at PPPL, as well as future tokamaks may not have room for solenoids. During CHI, magnetic field lines, or loops, are inserted into the tokamak's vessel through openings in the vessel floor. The field lines then expand to fill the vessel space, like a balloon inflating with air, until the loops undergo a process known as magnetic reconnection and snap closed. The newly formed closed field lines then induce current in the plasma.

"Can we create and sustain a big enough magnetic bubble in a tokamak to support a strong electric current without a solenoid?" asks Physicist Fatima Ebrahimi, who performed the computer simulations. "The findings indicate that 'yes, we can do it.'"

Read the full article on the PPPL website.

--Image: Physicist Fatima Ebrahimi

In line with a First Plasma in 2017, the 41-tonne vacuum vessel of the MAST Upgrade project was returned to its concrete-shielded home in late May, where it can now be refitted with its components and systems before commissioning.

The upgraded MAST tokamak will help to add to the knowledge base for ITER by experimenting with key plasma physics issues.

Watch a short video of the milestone on the website of the Culham Centre for Fusion Energy (UK).

During the next Symposium on Fusion Engineering (SOFE June 2017), Fusion Technology Awards will be presented for the years 2016 and 2017 to individuals who have made outstanding and innovative contributions to research and development in the field of fusion technology.

The Awards each consist of a USD 3,000 cash prize and a plaque. Any person, regardless of nationality or Society affiliation, is eligible for the award, with the exception that no current member of the IEEE/NPSS Standing Committee on Fusion Technology may be considered. The nomination package should be sent to IEEE Senior Member Martin Nieto-Perez (m.nieto@ieee.org), and it should consist of a nomination letter describing the technical and/or leadership contributions on which the nomination is recommended and a resume from the candidate.

The nomination deadline for the 2016 Award is 15 June 2016.

For more detailed information on eligibility, basis for judging, nomination process and a list of past Award recipients, please visit IEEE_NPSS.org and go to the "Fusion Technology Awards" section.

In a report to the US Congress released on 26 May, the Department of Energy (DOE) recommends "that the US remain a partner in the ITER project through Fiscal Year 2018," at which time the country's participation in the project will need to be reassessed.

"At this time, our continued participation [...] is in the best interest of the nation," writes Energy Secretary Ernest Moniz in the introductory message to the report.

The 17-page report notes that "the management of the ITER Organization and the performance of the project have improved substantially" under Bernard Bigot's leadership. "The project is now being well-run."

However, "the improvements and performance, while promising, still require additional time to determine if they will be sustained and lead to the long-term success of the project."

Despite the accumulated delays "ITER remains the fastest path for the study of burning plasma," concludes the report.

Photo: Energy Secretary Ernest Moniz

Download the DOE report on US participation in ITER here.

The ITER Organization will participate in this year's international symposium Atoms for the Future—the annual meeting of students and young professionals from the nuclear field (more information here). ITER Director-General Bernard Bigot will be among the speakers on 27 June 2016, and two days later students will have the possibility to visit the ITER site in southern France.

Registration for Atoms for the Future also gives you access to the World Nuclear Exhibition (28-30 June 2016) where the ITER Organization will be also be present.

US Department of Energy (DOE) Secretary Ernest Moniz dedicated the most powerful spherical torus fusion facility in the world on 20 May 2016. The $94-million upgrade to the National Spherical Torus Experiment (NSTX-U), funded by the DOE Office of Science, is a spherical tokamak fusion device that explores the creation of high-performance plasmas at 100-million degree temperatures.

NSTX-U at the Princeton Plasma Physics Laboratory (PPPL) will allow researchers around the world to explore fusion reactions [...] "The vastly expanded capabilities of this spherical tokamak will enable us to explore new physics regimes and tackle the major engineering problems for fusion energy," Moniz said.

NSTX-U draws on a 65-year-old legacy of fusion energy research at Princeton University's Plasma Physics Laboratory where, in the 1950s, physicist Lyman Spitzer created a machine he called a stellarator to produce energy the same way as the Sun. Experimental stellarators and tokamaks, the two most prominent fusion reactor designs, now dot the globe.

"This is exciting new territory, and we're thrilled to embark on the next frontier of fusion research. This device could transform the world by showing us the way to a pilot plant design for the generation of power from fusion energy for use by all," said Stewart Prager, director, Princeton Plasma Physics Laboratory.

Read the full article on the PPPL website.

During an Industrial Info Day on 20 May, the ITER Organization presented an upcoming tender for electrical, cabling, instrumentation and control installation works to the representatives of 30 companies (48 participants).

The ITER Organization will now pre-qualify interested companies before launching the tender.

Industrial Info Days like this one are organized to inform industry about the scope of installation work to be performed under individual contracts and to encourage companies to participate in the tender. Companies have a chance to meet potential partners in Business-to-Business (B2B) meetings, with the aim of building better consortia in order to respond to the scale and challenges of the task. Info Days are also an opportunity for the ITER Organization to listen to industry and to get feedback on its strategy.

A new energy technology "distillate" has been published by Princeton University's Andlinger Center for Energy and the Environment on magnetic confinement fusion, a technology with "enormous promise" as a global energy source, according to the authors.

The paper presents some of the basic science relevant to fusion energy and the central technical challenges before addressing the economic prospects for commercial fusion, the differences between fusion and fission, and the politics and progress in the global effort to develop nuclear fusion.

Andlinger Center distillates aim to provide succinct yet substantive information to a non-specialist audience on emerging topics in energy and the environment that combine technological, economic, and policy considerations. This is the third in the series so far.

The full distillate can be downloaded here.

--Photo: a plasma in the Chinese tokamak EAST

On 28 April, the ITER Organization signed a contract with the European consortium GNMS for the procurement of approximately 10 km of vacuum pipework, ranging in diameter from DN 25 to DN 250.

The ITER vacuum system will be one of the largest in the world. Vacuum pumping is required prior to starting the fusion reaction to eliminate all sources of organic molecules and to create low density—about one million times lower than the density of air. The network of pipework will form one of the most extensive distributed systems in ITER, alongside cryogenic and water cooling systems.

The contract signature marks a significant step forward for the ITER vacuum system.

Are you a university graduate who wants to gain international professional experience and contribute to the work of the European Domestic Agency for ITER? Or who is curious about ITER and simply wants to be part of one of the most ambitious energy projects in the world today? The European Domestic Agency for ITER is looking for graduates in engineering, physics, law, human resources, finance and communication for four to nine months beginning 1 October 2016.

The traineeship program is open to university graduates who are nationals of one of the Member States of the European Union or Switzerland, who have at least a three-year university degree obtained within the last three years, and a very good knowledge of English. Traineeships are offered in Barcelona (Spain), Garching (Germany) and at the ITER site in France.

The deadline to apply is 31 May 2016. Please find all information here.

If new energy sources offer cheap, plentiful power to everyone, how will the planet cope? FutureProofing examines a new method of power generation promising clean, limitless power for everyone. Can it work, what are the consequences, and is there a viable alternative?

Fusion has long-promised cheap, clean and limitless power, but over half a century of effort this technology has still not delivered an operational power plant. Now hopes are high that a vast project in the south of France will finally crack the problems and deliver a working model that can be replicated around the world. FutureProofing presenters Timandra Harkness and Leo Johnson travel to Provence to find out what the prospects are for a scheme costing upwards of £10 billion which could transform the energy supply for us all and with it global geopolitics and the environment for centuries to come.

The program explores what viable alternatives there could be to generate power at the same scale for billions of people across the world, and whether such an alternative is a better route to achieving the goal of cheap, plentiful and clean energy for the future. (Producer: Jonathan Brunert)

Follow this link to the 42-minute broadcast.

--By John Greenwald

A promising experiment that encloses hot, magnetically confined plasma in a full wall of liquid lithium is undergoing a $2 million upgrade at the US Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL). Engineers are installing a powerful neutral beam injector in the laboratory's Lithium Tokamak Experiment (LTX), an innovative device used to test the liquid metal as a first wall that enhances plasma performance. The first wall material faces the plasma.

 "This will bring us one step closer to demonstrating this particular approach to fusion," said Dick Majeski, principal investigator of the LTX. The experiment is a collaborative effort that includes researchers from Oak Ridge National Laboratory, UCLA, the University of Tennessee, Knoxville, and Princeton University, as well as PPPL. Funding comes from the DOE Office of Science. 

The neutral beam injector, a Russian-built device on loan from the Tri Alpha fusion firm in California, will shoot energetic beams into the small spherical tokamak to fuel the core of the plasma and increase its temperature and density—key factors in fusion reactions. "The beams will maintain the density and raise the temperature to a more fusion-relevant level," said Philip Efthimion, PPPL head of the Plasma Science and Technology Department that includes the LTX.

The experiment recently became the first device in the world to produce flat temperatures in a magnetically confined plasma. Such flatness reduces the loss of heat from the plasma that can halt fusion reactions.  The LTX also has provided the first experimental evidence that coating a large area of walls with liquid lithium can produce high-performance plasmas.

However, without fuelling from the neutral beam the density of an LTX plasma tends to drop off fast. The beam upgrade will keep the density from dropping, and test whether the liquid lithium coating can continue to maintain flat temperatures in much hotter plasmas.

Read the full story on the PPPL website.

Watch humans and robots work together inside the JET mockup at the Culham Centre for Fusion Energy (CCFE) in the UK.

Video via Tom Scott/CCFE

Researchers at the US Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) have challenged the understanding of a key element in fusion plasmas. At issue has been an accurate prediction of the size of the "bootstrap current"—a self-generating electric current—and an understanding of what carries the current at the edge of plasmas in doughnut-shaped facilities called tokamaks. This bootstrap-generated current combines with the current in the core of the plasma to produce a magnetic field to hold the hot gas together during experiments, and can produce stability at the edge of the plasma.

The recent work, published in the April issue of the journal Physics of Plasmas, focuses on the region at the edge in which the temperature and density drop off sharply. In this steep gradient region—or pedestal—the bootstrap current is large, enhancing the confining magnetic field but also triggering instability in some conditions.

The bootstrap current appears in a plasma when the pressure is raised. [...] Physics understanding and accurate prediction of the size of the current at the edge of the plasma is essential for predicting its effect on instabilities that can diminish the performance of fusion reactors.

--Illustration: Simulation shows trapped electrons at left and passing electron at right that are carried in the bootstrap current of a tokamak. Credit: Kwan Liu-Ma, University of California, Davis.

Read the full article on the PPPL website.

Another shipment of in-kind components from India has arrived at the PRIMA neutral beam test facility in Padua, Italy. At PRIMA, ITER's most powerful heating system—neutral beam injection—will be tested in advance of operation. 

The SPIDER test bed is a 1:1-scale ion source that will be used to develop the technology for the production of negative ions. India already delivered the beam dump in late 2014; this time, 13 trucks carried the components of the 100 kV power supply.

Read more about the lastest shipment here.

In its May 2016 issue, Nature Physics has produced an Insight on Nuclear Fusion that features an interview with ITER Director-General Bernard Bigot, a commentary by Steven Cowley (current Chief Executive Officer of the UK Atomic Energy Agency and Head of the EURATOM/CCFE Fusion Association), and a review of the fascinating physics that lies at the heart of nuclear fusion.

A full list of content is available at this link. (Content may be accessed through a subscription to Nature Physics or rental/purchase.)

 

A senior researcher at MIT's Plasma Science and Fusion Center (PSFC) in the US is using a gyrotron, a specialized radio-frequency (RF) wave generator developed for fusion research, to explore how millimetre RF waves can open holes through hard rock by melting or vaporizing it.

Penetrating deep into rock is necessary to access virtually limitless geothermal energy resources, to mine precious metals or explore new options for nuclear waste storage. But it is a difficult and expensive process, and today's mechanical drilling technology has limitations. Woskov believes that powerful millimetre-wave sources could increase deep hard rock penetration rates by more than ten times at lower cost over current mechanical drilling systems, while providing other practical benefits.

"There is plenty of heat beneath our feet," he says, "something like 20 billion times the energy the world uses in one year." But, Woskov notes, most studies of the accessibility of geothermal energy are based on current mechanical technology and its limitations. They do not consider that a breakthrough advance in drilling technology could make possible deeper, less expensive penetration, opening into what Woskov calls "an enormous reserve of energy, second only to fusion: base energy, available 24/7."

Current rotary technology is a mechanical grinding process, limited by rock hardness, deep pressures, and high temperatures.  Specially designed "drilling mud," pumped through the hollow drill pipe interior, is used to enable deep drilling and to remove the excess cuttings, returning them to the surface via the ring-shaped space between the drill pipe and borehole wall. The pressure of the mud also keeps the hole from collapsing, sealing and strengthening the hole in the process. But there is a limit to the pressures such a borehole can withstand, and typically holes cannot be drilled beyond 30,000 feet (9km).

Woskov asks, "What if you could drill beyond this limit? What if you could drill over ten kilometers into the earth's crust?" With his proposed gyrotron technology this is theoretically possible.

Continue reading on the PSFC website.

The ASDEX-Upgrade team at the Max Planck Institute for Plasma Physics (IPP) in Garching, Germany is experimenting with a new mode of tokamak operation.

In recent experimental results, an operational mode described as offering "stable plasma, high plasma pressure and good confinement properties in a parameter range in which future power plants are to be working" has been achieved almost without the transformer, or solenoid, that is typically used to induce the strong current in the plasma that contributes to creating the magnetic cage of tokamaks like ITER and ASDEX-Upgrade.

In its place, microwaves and particle beams injected close to the plasma core were used to prolong the plasma pulse.

This type of "advanced tokamak operation" was the object of investigation for IPP scientist Alexander Bock, who details the advantages that continuous operation would have over pulsed operation as part of his PhD thesis. Advantages included better control of the plasma current profile in the plasma, longer pulses, and decreased turbulence.

Read the IPP press release in English or in German.

EUROfusion, the coordinating body for fusion research activities in Europe, is seeking student writers to contribute to the summer issue of Fusion in Europe.

If you possess strong writing skills, are curious, and can explain complex science with compelling metaphors, please send in your writing samples to this address by 16 May 2016.

Find out more about the program here.

On April 6, 2016, the largest-scale nuclear industry exhibition in China opened its doors and the ITER Project was there.

For four days, the actors of the global nuclear industry gathered in the National Convention Center in Beijing for the 14th China International Nuclear Industry Exhibition. One of the themes of the conference was "Fusion & Plasma Technology Applications."

The Chinese Domestic Agency for ITER (ITER China) was invited to participate by one of the sponsors of the event, the Chinese Nuclear Society. At its 36 m² stand, complete with graphic display boards, model exhibits and promotional videos, the public was given a comprehensive introduction to the ITER Project, the status of domestic fusion research and development, and the specific contribution of China to ITER.

The Director-General of the ITER Organization, Bernard Bigot, and the head of the Korean Domestic Agency, Kijung Jung, both visited the ITER stand, as well as representatives from institutes, universities, and suppliers involved with fusion at home and abroad.

--By Raphael Rosen

Scientists at the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have helped design and test a component that could improve the performance of doughnut-shaped fusion facilities known as tokamaks.

Called a "liquid lithium limiter," the device has circulated the protective liquid metal within the walls of China's Experimental Advanced Superconducting Tokamak (EAST) and kept the plasma from cooling down and halting fusion reactions. The journal Nuclear Fusion published results of the experiment in March 2016.

This system reduces the production of impurities that typically are created when the plasma reaches other components of the vessel. Moreover, plasmas tolerate higher amounts of lithium impurities, compared with the impurities from other materials, because the low atomic number of lithium produces very low amounts of plasma radiation that typically cools the plasma core.

Serving as the main point of contact with plasma enables the lithium to absorb the hot deuterium ions that drift from the centre of the plasma, and keeps them from striking the interior walls of the tokamak and cooling down. Limiting the amount of cool deuterium at the edge of the plasma reduces the difference in temperature between the hot plasma centre and the cooler edge, and reduces turbulence. As a side note, however, contact with the ions was found to slightly damage the thin stainless steel foil surface of the limiter device, prompting work on an improved design.

Read the full report on the PPPL website.

Photo of the white-hot limiter glowing in contact with the plasma during an EAST discharge.

WEST's international call for modelling and experimental proposals was successfully completed on 15 March 2016 with more than 150 proposals received from the ITER Organization, Europe, USA, China, Japan, India, Korea and Russia. All the contributions can be viewed on the WEST wiki pages.

 

The first WEST Experiment Planning Meeting will be held on 18-20 April 2016 at CEA Cadarache to discuss the prioritization of experimental and modelling proposals and to define a timeline for the 2016-2017 WEST experimental campaigns.

 

Click  here to read WEST's Newsletter #12

At the first edition of the Security Meetings exhibition in Cannes, France, on 22-24 March 2016, ITER Head of Security, Health & Safety Christophe Ramu was awarded the title of "Security Director of the Year."

A first of its kind, the exhibition brought together more than 120 participants from prestigious organizations such as CEA, Aéroport de Paris, Airbus, Air France, Banque de France, Bolloré, Bouygues, Capgemini, Cartier, City of Marseille, Engie, Gendarmerie Nationale, Hyatt, Intercontinental, Lafarge, Razel-bec, Saint-Gobain, Suez, Orange, DHL and Musée du Louvres.

During the event, four security awards were also attributed to reward outstanding initiatives in security approach.

In the category "Security Director of the Year," Christophe Ramu was recognized for his professionalism and innovation in the exercise of his profession. Christophe, who joined ITER in 2012 after serving for 20 years at Marseille's Marine Fire Battalion, is managing—among many other tasks—the evolution in the implementation of a pre-enrolment system for accessing the ITER site.

This system will enable on-site contracting companies, once they are accredited by the ITER Organization, to manage access requests for their own personnel. The system, which will be fully operational in the second half of 2016, will also improve the monitoring activity of personnel presence and localization on the ITER site.

Cooling 10,000 tons of superconducting magnets that will confine the energy-generating plasma is indispensable to the proper working of the ITER Tokamak. The cryogenic plant, whose design phase began in 2013, has now entered the fabrication phase at the Air Liquide factory near Grenoble, France.

This impressive centralized cryogenic refrigeration system will be composed of helium (He) and nitrogen (N2) refrigeration units and dedicated storage, operating in a closed loop. Helium, at a temperature of close to the absolute zero (-269°C, or 4.5K), will be used to cool magnets, vacuum pumps and certain diagnostic systems.

Nitrogen, whose temperature (-196°C, or 77K) is not quite as low, will contribute among other things to the cooling of the heat shield and to the pre-cooling of the helium refrigeration unit and the helium loops. The site's three helium units (LHe) will occupy 3,000 m2 of the 5,400 m2 set aside for the ITER cryogenic unit. LHe is composed of several compression stations and three large cold boxes, which weigh 135 tons each, measure 21 metres in length, and have a diameter of 4.2 metres.

On average, the helium refrigeration units will provide a global cooling capacity of 75kW to 4.5K, which translates into a maximum liquefaction rate of 12,300 liters/hour. They will be completed by two nitrogen units (LN2). The 11 helium and nitrogen gas storage units—with a total capacity of 3,700 m3 (of which 3,300 m3 for the helium)—will help to optimize the recovery of fluids in the various operational phases of the tokamak.

View the special issue on ITER in Cryoscope, a magazine from Air Liquide.

For Lego enthusiasts the ITER Tokamak is an endless source of inspiration.  In June 2012, Newsline reported on Japanese artist Sachiko Akinaga who had created an 8,000-piece tokamak assembly scene using standard Lego bricks.

Two years later an American videogame designer, Andrew Clark, tried to convince the Lego company to bring his model of the ITER Tokamak into commercial production; unfortunately, the proposal never gathered the 10,000 "votes of support" required to turn the project into an official set.

At the University of Kyoto in Japan, another Lego venture is taking shape. A group of students in fusion materials and reactor engineering (Konishi Laboratory, Dr Kasada's group) has built a highly realistic version of the ITER Tokamak with all major components in place—coils, ports, heating systems, and Test Blanket Modules are all identified by a different colour. The students even managed to insert a waveguide into the vacuum vessel wall...

An achievement in terms of both realism and poetry, the ITER-LEGO project will be used for the promotion of fusion energy in exhibitions and conferences.

Click here to view a video of the ITER-LEGO.

The European Domestic Agency has developed a new numerical model that represents ITER's 18 toroidal field magnets with remarkable detail. The model will be used to compute the magnetic fields produced by the coils and the resulting electromagnetic forces on the magnet system, which are the result of the interaction between electrical currents and the magnetic field.

"It's the first time we have a complete model of the entire ITER toroidal field system to such a level of detail," says Gabriele D'Amico, the technical support officer responsible for the development of the model. "The level of complexity of the tool is outstanding. For example there are more than 1,500 bolts connecting the different pieces of the toroidal field magnet system, and the model allows us to predict the behaviour of each one during operations."

The model, which took six months to develop, will allow the European Domestic Agency and the ITER Organization to simulate different scenarios using an approach that integrates the 18 coils and all major subsystems. Scientists will be able to study the occurrence of an electrical fault during operation, for example, or the impact of possible misalignment in the assembly of the coils on the behaviour of the whole system.

Read the full article on the European Domestic Agency website.

Progress on the MAST Upgrade project at the Culham Centre for Fusion Energy (CCFE) took another step forward from the "page" to completion, as the tokamak's bottom plate was lowered into place in the machine area last week.

Positioning of the 11-tonne bottom plate, which contains intricately-engineered magnetic coils assembled over many months, went smoothly. The team hopes to have the device ready for commissioning at the end of 2016.

See a video of the operation on the CCFE website.

European Domestic Agency contractors have made significant progress in the fabrication of the first toroidal field winding pack—the 110-ton inner core of ITER's D-shaped superconducting magnets known as toroidal field coils.

Following sophisticated, multi-stage winding operations, seven layers of coiled superconducting cable (double pancakes) have now been successfully stacked and electrically insulated. After vacuum-pressure insulation and testing, the winding pack will be inserted into a massive stainless steel case to form a final assembly that measures 9 x 17 metres and weighs 310 tons.

Eighteen D-shaped toroidal field coils—each made up of a winding pack and stainless steel coil case—will be responsible for magnetically confining the ITER plasma. Europe has the responsibility for half the coils plus one spare; Japan is producing another 9. The 19 stainless steel coil cases will be procured by Japan.

Beginning with the first manufacturing steps for the niobium-tin (Nb3Sn) superconducting wire in 2008, Europe estimates that over 600 people from at least 26 companies have contributed to this milestone.

Read the full report on the European Domestic Agency website.

--Europe's A. Bonito-Oliva, project manager for magnets, and R. Harrison, technical officer for magnets, stand in front of the first toroidal field coil winding pack at ASG Superconductors (La Spezia, Italy).

By John Greenwald

Big Bang neutrinos are believed to be everywhere in the universe but have never been seen. The expansion of the universe has stretched them and they are thought to be billions of times colder than neutrinos that stream from the sun. As the oldest known witnesses or "relics" of the early universe, they could shed new light on the birth of the cosmos if scientists could pin them down. That's a tall order since these ghostly particles can speed through planets as if they were empty space.

Now Princeton University physicist Chris Tully is readying a facility to detect these information-rich relics that appeared one second after the Big Bang, during the onset of the epoch that fused protons and neutrons to create all the light elements in the universe. Tully runs a prototype lab in the US Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) that draws on the fact that neutrinos can be captured by tritium, a radioactive isotope of hydrogen, and provide a tiny boost of energy to the electrons emitted in tritium decay.

--Princeton physicist Chris Tully in the PTOLEMY laboratory. Behind him are powerful superconducting magnets on either side of the vacuum chamber. Photo Elle Starkman/PPPL

Read the whole article on the PPPL website.

The deadline is fast approaching to submit a proposal to the 2016 SOFT Innovation Prize, launched by the European Commission late last year for award at the 29th SOFT (Symposium on Fusion Technology) international conference in Prague in September.

Proposals are requested for physics or technology innovations related to magnetic confinement fusion research that have a potential for further exploitation.

Three prizes will be awarded: EUR 50,000 (1st prize), EUR 25,000 (2nd prize) and EUR 12,500 (3rd prize). The deadline for submission is 7 April 2016.

For more information on eligibility, exclusion and award criteria please see Europe's Horizon 2020 website.

ITER will use extensive cryogenic technology to create and maintain low-temperature conditions for the magnet, thermal shielding and vacuum pumping systems. The ITER cryoplant will be the largest concentrated cryogenic system in the world (one plant location) and second only to CERN in terms of total cooling power.

On the ITER platform, work is progressing on the foundations of the plant building while—following successive design phases—the procurement of cryoplant components is now underway by Europe (liquid nitrogen plant and auxiliary systems), the ITER Organization (helium plant) and India (cryolines and cryodistribution components).

In February, as part of Europe's procurement package, a 23-metre-long storage tank for liquid helium successfully passed leak detection tests. Responsible for keeping liquid helium at a steady -269 °C, the stainless-steel inner tank has multi-layer insulation to minimize thermal losses and will be assembled with exterior thermal shielding. The examination of 500 metres of linear welds was successfully performed by the manufacturer, opening the way to the delivery of the equipment at ITER before the end of the year.

The storage tank was manufactured by CryoAB (Sweden) as part of the contract signed between the European Domestic Agency and Air Liquide Global and EC Solutions and Fusion for Energy.

Read the original news item on the European Domestic Agency website.

-- Part of ITER's cryoplant, the 190 m³ stainless-steel tank will store liquid helium at -269 °C.

The path to creating sustainable fusion energy as a clean, abundant and affordable source of electric energy has been filled with "aha moments" that have led to a point in history when the ITER fusion experiment is poised to produce more fusion energy than it uses when it is completed in 15 to 20 years, said Ed Synakowski, associate director of Science for Fusion Energy Sciences at the US Department of Energy (DOE).

Synakowski spoke as part of the Ronald E. Hatcher "Science on Saturday" lecture series at the Princeton Plasma Physics Laboratory (PPPL).

Read the full report on the PPPL website.

-- Ed Synakowski is pictured at the Monaco-ITER International Fusion Energy Days (2013).

How to sustain and measure temperature in a fusion plasma? This challenging task requires different heating systems and diagnostic tools. Information on the spatial distribution of temperature is one of the key elements for improving and controlling plasma performance.

In a recently published Nature Physics article, Didier Mazon, Christel Fenzi and Roland Sabot, of CEA's Research Institute on Magnetic Fusion (IRFM) explore the fascinating realm of ultra-hot temperatures.

Illustration of a new X2D diagnostic: spectroscopy for ion temperature measurement in the WEST tokamak.

Click here to read the whole article in Nature Physics.

At the CEA Saclay's Cold Test Facility, near Paris, JT-60SA's first toroidal field coil has completed its round of tests at cryogenic temperature (4.5 K). "The coil became superconductive and reached its full current (25.7kA) without any problem," said Pietro Barabaschi, Home Team Project Manager for Europe's contribution to the Broader Approach project.

A ceremony will be organized at CEA Saclay on 6 April prior to shipping the coil to Japan.

Read the story on the European Domestic Agency's website.

The 53rd edition of the Culham Summer School will take place from 18 to 29 July 2016.

The school provides an introduction to the fundamental principles of plasma physics, together with a broad understanding of its fields of application. Topics cover magnetic and laser confinement fusion, space and astrophysical plasmas and low temperature plasmas. Lecturers are drawn from Culham Centre for Fusion Energy and leading laboratories and university groups from the UK and abroad. All are renowned experts in their fields.

Reduced rate 'early bird' registration is open until 1 May.

For more information and to book your place, follow this link.

Assembly operations are progressing on JT-60 SA. In December 2015, the final 20° Vacuum Vessel sector was inserted into the opening of the 340° torus to measure the gaps between the 340° and 20° sectors for the later welding. The operation provided with a brief vision of the completed donut-shaped 360° Vacuum Vessel.

JT-60SA is a fusion experiment designed to support the operation of ITER and to investigate how best to optimize the operation of fusion power plants that are built after ITER. It is a joint international research and development project involving Japan and Europe, using infrastructure of the existing JT-60 Upgrade experiment. SA stands for "super, advanced", since the experiment will have superconducting coils and study advanced modes of plasma operation.

This satellite tokamak program was established in 1997 as one of three joint projects between Europe and Japan within the Broader Approach Agreement.

Construction of the Materials Research Facility (MRF) at Culham is complete and the building has already hosted its first experiments.

The MRF has been established to analyse material properties in support of both fission and fusion research. It will benefit university and industry users working on micro-characterisation of nuclear materials. It is part of the National Nuclear User Facility (NNUF) initiative, launched by the Government and funded by EPSRC, to set up a multi-site facility giving UK academia and industry access to internationally-leading experimental equipment

On Friday 12 February, the keys to the building were formally handed over by David Wilde, construction site manager for contractors E G Carter, to Martin O'Brien and James Treadgold of the UK Atomic Energy Authority.

Read more on CCFE website.

Read here: "Why is metallurgy so important for fusion's future?"

Interaction with industry is essential to ITER success. In 2008, the European Domestic Agency established a network of Industrial Liaison Officers (ILOs) entrusted with a strategic mission: to raise industry awareness about ITER work packages, needs and tender procedures.

For the past seven years, the 20-person-strong European ILO network has also played a key role in fostering partnerships between industrial companies in order to make strong technical and commercial bids adapted to the project's specific demands.

In 2015, a proposition to extend the ILO concept to the other ITER Members resulted in an invitation to Domestic Agency Heads to nominate an ILO.

Japan was among the first to answer the call. Earlier this month, Yoshihiko Nunoya, an engineer with the Japan Atomic Energy Agency, took up his duties as the first non-European ILO.

It is expected that a global ILO network will be fully established by the end of the year.

 From left to right: Setsuko Moriyama, ITER Project Integration and Support Group; Yoshinori Kusama, Head of the Japanese Domestic Agency; Jennifer Hayashi, ITER Project Management Group, JAEA;Takashi Inoue, Deputy Head, ITER Project division, JAEA  and Yoshihiko Nunoya, Group leader of JAEA;s ITER Project Management Group and recently appointed Industrial Liaison Officer.

 

 

 

 

This heart-shaped dust particle was captured by ion microbam scan on a divertor tile in the JET tokamak.  

A team of researchers from the Croatian Fusion Research Unit—Stjepko Fazinić, Ivan Sudić and Tonči Tadić (Ruđer Bošković Institute)—in cooperation with their colleague Per Petersson from the KTH Royal Institute of Technology in Sweden "caught" a fusion heart during an experiment at JET in December 2015.

Measuring 100 by 120 micrometres, the dust particle is made mainly of tungsten, nickel, chromium, molybdenum and iron, with traces of beryllium, aluminium, copper and sodium.

The Joint European Torus is currently the world's largest operational magnetic confinement plasma physics experiment, located at the Culham Centre for Fusion Energy in Oxfordshire, UK. As a joint venture, JET is collectively used by more than 40 European laboratories. The European Consortium for the Development of Fusion Energy EUROfusion provides the work platform to exploit JET in an efficient and focused way. As a consequence more than 350 scientists and engineers from all over Europe currently contribute to the JET program.

Read the original story on the Ruđer Bošković Institute website.

As work on the foundations of the ITER cryoplant advances on site, industrial partners around the world are making progress on the different manufactured elements of what will be the largest concentrated cryogenic system in the world.

The ITER cryoplant is composed of helium and nitrogen refrigerators combined with a 80 K helium loop. Three helium refrigerators supply the required cooling power via an interconnection box providing the interface to the cryodistribution system; two nitrogen refrigerators provide cooling power for the thermal shields and the 80 K pre-cooling of the helium refrigerators. The ITER cryogenic system will be capable of providing cooling power at three different temperature levels: 4 K, 50K and 80K.

The cryoplant is also a wide international collaboration, with Europe procuring the Liquid Nitrogen Facility (LN2) and auxiliary systems, India procuring the interconnecting lines and cryodistribution equipment, and the ITER Organization directly procuring the Liquid Helium (LHe) plant.

Under contract to Air Liquide Global E&C Solutions France, chosen by the European Domestic Agency to manufacture the LN2 plant, the Indian company Flowserve has produced six valves that will control the helium flow from the 80K loop boxes to the thermal shields and cryopumps of the ITER machine. These valves are nearly five times bigger than the average cryogenic valve found on a standard helium liquefier, measuring 2.5 metres in height and weighing more than 1.5 metric tons. Maximum flow-through attains 4.4 kg/second, more than twice what is normally released through a helium valve in even the biggest helium liquefiers. 

The ITER Organization coordinated the inspection of the valves, which are now on their way to China to be assembled with other equipment.

Read the original story on the European Domestic Agency website.

The European Commission had established a panel of independent high-level experts to evaluate the Euratom research program comprising fission and fusion research. The findings, which were recently published, are more than a pat on the back for Europe's fusion research activities, especially with regard to EUROfusion's flagship device the Joint European Torus (JET) and the Roadmap to the realisation of fusion energy.

The panel's findings place JET firmly at the heart of Europe's fusion research activities and underline its role as the device that is crucial to the developments at ITER. JET is currently the largest operating tokamak in Europe and also the only machine that is capable of carrying out experiments using the deuterium-tritium (D-T) fuel. And because D-T is the fuel of choice for a fusion reactor, results from the upcoming D-T experiments in JET will provide the know-how pertinent to ITER experiments. In addition, JET's ITER-like plasma-facing wall, its tungsten divertors, and its highly sophisticated remote-handling systems are all features that will lend invaluable knowledge and experience relevant to ITER.

Another facet the panel recognized as important is the European Fusion Roadmap which looks to steer the fusion program from being solely laboratory-based and science-driven to include industry and technology in its fold. The roadmap, which has been put together with inputs from all the EUROfusion consortium members, looks to solidify collaboration with industry in areas ranging from standardization of parts to plant design and integration and materials development. Also featuring prominently in the Fusion Roadmap is the role of JET as the testing ground for ITER operation— an aspect that is completely aligned with the panel's findings.

The independent panel's evaluation strongly backs this endorsement stating that "the decision to extend the use of JET to support the development of ITER was not only correct but essential." It further goes on to say that "high priority should be given to keeping JET operating until the design for ITER has been finalized and ITER has been successfully commissioned."

Read the original story at EUROfusion.

A new series of five downloadable posters is available in the ITER on-line Publication Centre (/posters). Designed for A1 printing, they are sized for classrooms, offices and labs.

This first series features the ITER machine, several of its principal components (the cryostat and the divertor), assembly tooling and ITER construction. A second series is planned.

ITER aficionados to your printers!

China has conferred its annual International Scientific and Technological Cooperation Award on a figure closely associated with the ITER Project—Academician Evgeny Velikhov, who helped to initiate the project at the highest political level in the mid-1980s and who served as ITER Council Chair during the technical design phase for ITER and again at the start of ITER construction from 2010-2012.

Currently director of the Kurchatov Institute in Moscow, Academician Velikhov was recognized by the Chinese government for his long-term contribution to Chinese-Russian fusion cooperation. He initiated bilateral cooperation between the Kurchatov and ASIPP (Institute of Plasma Physics, Chinese Academy of Sciences), helping China in the successful development of a superconducting tokamak. He has visited China multiple times in recent years as an international advisor and has made valuable suggestions on the conceptual design of China's next-phase device, the China Fusion Engineering Test Reactor (CFETR).

The International Scientific and Technological Cooperation Award is the most prestigious honour in China for foreigners or foreign organizations "who make outstanding contributions to science and technology development in China."

Read the full story in ASIPP's January newsletter, below.

During its fifth General Assembly held at ITER on 4 February, the European Fusion Education Network FuseNet approved a work plan for the period 2016-2017.

The FuseNet Association was founded in December 2010 as a platform for stimulating, supporting and coordinating fusion education in Europe, with the aim to the aim of attracting good students and providing them challenging education in fusion science and technology, developing educational tools, encouraging student mobility, and acting as matchmaker between industry and research labs/academia for student internships and vacancies.

FuseNet members are made up of universities with programs in fusion as well as research institutes and industry involved in ITER and/or fusion technology. Membership is not restricted to European organizations.

For more information, visit the FuseNet website.

In the latest issue of NFRI News Korea's National Fusion Research Institute reports the latest KSTAR experimental campaign. Ten overseas research institutes and nine Korean institutes collaborated on this eighth campaign, which ended in December 2015. 

The January issue also announces the 2015 NFRI Award was attributed to Hyeongon Lee, the Deputy Director General of ITER Korea. The award recognizes Prof. Lee's leading work on non-destructive testing technology for ITER and the validation of analysis relating to the ITER thermal shield and assembly tooling.

Read the January issue of NFRI News here.

The MAST Upgrade vacuum vessel is getting a paint job — and its new look will ensure the experiment produces top-quality plasma physics data when it starts operating next year.

While it's a shame to cover up the gleaming stainless steel surfaces, science must take precedence over aesthetic considerations. A number of key measuring systems — diagnostics — on MAST-U will rely on accurate readings of light from the plasma. With uncovered steel, the light bounces off the vessel surfaces, playing havoc with the measurements. Reflected light also makes it more difficult to examine images of the plasma for physics phenomena such as ELM instabilities. Applying graphite-based paint to the walls greatly reduces these reflections, giving physicists much better results to work with.

Read the whole article at CCFE.

The delegation from the Chinese Ministry of Science & Technology (MOST) that was received at ITER on 26 January also paid a visit to the International School in the neighbouring town of Manosque. Headed by Luo Delong, head of the Chinese Domestic Agency for ITER, and Sun Yuming, Deputy Director-General of the Executive Office at MOST, the delegation had a gift for the students in the Chinese section: four boxes of textbooks for primary school classes and picture books for pre-schoolers.

Of the 34 students in the Chinese section 21 are "ITER children"; the others are French nationals learning Chinese as second foreign language.

One of the biggest obstacles to making fusion power practical—and realizing its promise of virtually limitless and relatively clean energy—has been that computer models have been unable to predict how the hot, electrically charged gas inside a fusion reactor behaves under the intense heat and pressure required to make atoms stick together.

The key to making fusion work—that is, getting atoms of a heavy form of hydrogen called deuterium to stick together to form helium, releasing a huge amount of energy in the process—is to maintain a sufficiently high temperature and pressure to enable the atoms overcome their resistance to each other. But various kinds of turbulence can stir up this hot soup of particles and dissipate some of the intense heat, and a major problem has been to understand and predict exactly how this turbulence works, and thus how to overcome it.

A long-standing discrepancy between predictions and observed results in test reactors has been called "the great unsolved problem" in understanding the turbulence that leads to a loss of heat in fusion reactors. Solving this discrepancy is critical for predicting the performance of new fusion reactors such as the huge international collaborative project called ITER, under construction in France.

Now, researchers at MIT's Plasma Science and Fusion Center, in collaboration with others at the University of California at San Diego, General Atomics, and the Princeton Plasma Physics Laboratory, say that they have found the key. In a result so surprising that the researchers themselves found it hard to believe their own results at first, it turns out that interactions between turbulence at the tiniest scale, that of electrons, and turbulence at a scale 60 times larger, that of ions, can account for the mysterious mismatch between theory and experimental results.

The new findings are detailed in a pair of papers published in the journals Nuclear Fusion and AIP Physics of Plasmas, by MIT research scientist Nathan Howard, doctoral student Juan Ruiz Ruiz, Cecil and Ida Green Associate Professor in Engineering Anne White, and 12 collaborators.

See the original story on MIT News.

Photo courtesy of the researchers.

The Kudowa Summer School "Towards Fusion Energy" takes place every two years in Kudowa Zdrój, Poland.

Organized by the Institute of Plasma Physics and Laser Microfusion (IPPLM) and the International Centre for Dense Magnetised Plasma (ICDMP), the summer program is geared toward a multinational audience, principally PhD students but also Master's students and young scientists from all over Europe.

Courses focus on various aspects of fusion energy, plasma experiments, plasma modelling and technology for young scientists from different countries. The subject of the Kudowa Summer School in 2016 is: Power Exhaust in Fusion Plasmas.

The 2016 Kudowa Summer School will take place from 13 to 17 June 2016 (registration deadline 20 March). For more information, visit the dedicated website.

Using Mira, physicists from Princeton Plasma Physics Laboratory (PPPL) have uncovered a new understanding about electron behaviour in edge plasma. Based on this discovery, improvements were made to a well-known analytical formula that could enhance predictions of and, ultimately, increase fusion power efficiency.

Principal investigator C.S. Chang, head of the U.S. SciDAC-3 Partnership for Edge Physics Simulation headquartered at PPPL, and co-investigator Robert Hager recently gained new insight into the properties of a self-generating electrical current that boosts power in a tokamak fusion reactor, based on simulations run on the 10-petaflop IBM Blue Gene/Q supercomputer Mira located at the Argonne Leadership Computing Facility in the US.

To develop the best predictive tools for ITER (and, by extension, other experimental fusion reactors), research teams are using high-performance computing to resolve the behaviours of fusion plasma across the many spatial scales that impact reactor efficiency and plasma stability.

Running on more than 260,000 Mira processing cores with excellent scalability, the latest XGCa plasma edge simulations revealed electron behaviours related to edge bootstrap current that are not accurately predicted for present-day tokamak geometry by the well-known Sauter formula, which is used to calculate values for the bootstrap current.

"Mira allows running simulations of larger tokamaks at ITER's scale, and modeling at much higher particle counts more accurately represents the electron populations in the plasma," said Tim Williams, Argonne computational scientist.

Read the full article on the website of the Argonne Leadership Computing Facility.

Image: Based on a series of high-resolution simulations of bootstrap current in present-day tokamak geometries, researchers have modified a well-known formula that calculates the value of bootstrap current in order to improve the prediction of fusion efficiency in tokamak reactors. Credit: Kwan Liu-Ma, University of California, Davis.

What should have been a standard two-hour visit turned out to be a four-hour crash course in fusion. For the first time in the history of the ITER Project, a 29-person delegation from the African continent came to visit ITER this week. Taking part in a conference in Marseille on public-private partnerships in the energy sector, the lawyers, engineers and ministry representatives from Cameroun, Burkina Faso, Congo, Togo, Senegal, Kenya, the Ivory Coast, Maurice, Mali and Uganda seized the opportunity to spend an afternoon at ITER Headquarters, with a visit to the site and presentations on fusion science and technology and the organization of the world's largest International scientific collaboration. "What you are doing here is really amazing," Tarek Toko, from the West African Development Bank, said on the way back to the bus. "You must succeed!"

The organization charged with overseeing and coordinating the European Union's quest for fusion power, EUROfusion, plans to update during 2016 the European Union's 2012 strategic plan to put fusion electricity on the grid by 2050, according to Xavier Litaudon speaking at the annual meeting of the Fusion Power Associates on 16-17 December in Washington, DC.

ITER remains "the key facility of the roadmap" but the update will incorporate the impact of slippage in the ITER construction schedule. A new ITER schedule is expected to be approved by the ITER Council by mid-2016 according to ITER Director-General Bernard Bigot, who also spoke at the meeting.

The European Union's strategic plan reflects a collaboration with Japan on the "Broader Approach" to fusion that was a part of the ITER siting decision process. According to EUROfusion, in the course of the roadmap implementation the fusion program will move "from being laboratory-based and science-driven towards an industry- and technology-driven venture."

To ensure minimal delay to DEMO, the next step after ITER, the European Union has initiated a conceptual design system engineering approach that will address such issues as safety, tritium breeding, power exhaust, remote handling, component lifetime and plant availability, according to Litaudon. Experience gained from continued operation and "internationalization" of the JET tokamak and from devices JT-60SA (Japan), WEST (France) and Wendelstein 7-X (Germany) are also important elements of the plan.

Ed Synakowski, head of the US fusion program, told the audience that the US had recently completed the US fusion Strategic Plan requested by Congress in 2014. Permission from Congress was needed before the Plan could be released to the public, he said.

All talks from the Fusion Power Associates annual meeting, Strategies to Fusion Power, are posted at the FIRE website.

Source:Fusion Power Associates

Among the most feared events in space physics are solar eruptions, massive explosions that hurl millions of tons of plasma gas and radiation into space. These outbursts can be deadly: if the first moon-landing mission had encountered one, the intense radiation could have been fatal to the astronauts. And when eruptions reach the magnetic field that surrounds the Earth, the contact can create geomagnetic storms that disrupt cell phone service, damage satellites and knock out power grids.

NASA is eager to know when an eruption is coming and when what looks like the start of an outburst is just a false alarm. Knowing the difference could affect the timing of future space missions such as journeys to Mars, and show when steps to protect satellites, power systems and other equipment need to be taken.

(Photo NASA)

Read the whole article on the PPPL website.

Momentum is building on the MAST Upgrade project at the Culham Centre for Fusion Energy (CCFE) in the UK.

When completed, the upgrade of the Mega Amp Spherical Tokamak (MAST) will enable scientists to test the spherical tokamak design as a candidate for a Component Test Facility that will trial technology and materials in advance of the next-step machine; add to the knowledge base for ITER on key plasma physics issues; and test a high-power exhaust system known as a Super-X divertor.

The final phase of assembly will take place in 2016.

See the three-minute video on the CCFE website.

Scientists at the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have produced self-consistent computer simulations that capture the evolution of an electric current inside fusion plasma without using a central electromagnet, or solenoid.

The simulations of the process, known as non-inductive current ramp-up, were performed using TRANSP, the gold-standard code developed at PPPL. The results were published in October 2015 in Nuclear Fusion. The research was supported by the DOE Office of Science.

In traditional donut-shaped tokamaks, a large solenoid runs down the centre of the reactor. By varying the electrical current in the solenoid scientists induce a current in the plasma. This current starts up the plasma and creates a second magnetic field that completes the forces that hold the hot, charged gas together.

But spherical tokamaks, a compact variety of fusion reactor that produces high plasma pressure with relatively low magnetic fields, have little room for solenoids. Spherical tokamaks look like cored apples and have a smaller central hole for the solenoid than conventional tokamaks do. Physicists, therefore, have been trying to find alternative methods for producing the current that starts the plasma and completes the magnetic field in spherical tokamaks. 

One such method is known as coaxial helicity injection (CHI). During CHI, researchers switch on an electric coil that runs beneath the tokamak. Above this coil is a gap that opens into the tokamak's vacuum vessel and circles the tokamak's floor. The switched-on electrical current produces a magnetic field that connects metal plates on either side of the gap.

Read more on the PPPL website.

The 2015 roundup of news from the US ITER Project Office is now available online.

US ITER achieved a number of project "firsts" for delivery and fabrication over the last year. Deliveries to the ITER site included the first nuclear grade hardware (drain tanks) and the first highly exceptional load shipment to ITER (a 90-ton electrical transformer). The US also supplied the first plant components installed at the ITER site (a total of four transformers). On the fabrication side, US ITER shipped its first production toroidal field conductor to the coil manufacturer in Europe and has begun fabrication of the first central solenoid module.

Read all the news here.

Fusion in Europe is a regular magazine on the progress of fusion research published by the EUROfusion consortium. In the December 2015 issue, the magazine takes a look at ongoing preparations for the deuterium-tritium campaign at JET, at the research planned on the upgraded spherical tokamaks MAST (UK) and NSTX (US), and at topical program news from fusion laboratories all over Europe.

Read the latest Fusion in Europe here.

For the close of the year, EUROfusion—the European Consortium for the Development of Fusion Energy—is highlighting 24 cutting-edge technologies that have either benefited from, or are the by-products of, fusion research.

Superconducting magnets, low-activation heat-resistant materials, high-tech filters, sophisticated computer codes ... work being carried out around the world on fusion science and technology is pushing known technologies to new levels or breaking new ground for the benefit of many other sectors and, ultimately, society at large.

Follow the Spinoff Advent Calendar on EUROfusion's website.

Members of MIT's Plasma Science and Fusion Center (PSFC) community are cheering the start of a long-anticipated physics experiment at the Max Planck Institute for Plasma Physics in Greifswald, Germany. Two teams of PSFC researchers are collaborating on the Wendelstein 7-X device, the world's largest fusion experiment designed in the stellarator line of magnetic confinement fusion devices.

The PSFC has significant experience with a different configuration of magnetic confinement, having spent decades designing and running the Alcator series of high-magnetic-field tokamak experiments — the Alcator C-Mod device, located on campus, is the latest in that series. There are many similarities between the two designs, however. 

Both the tokamak and the stellarator seek to harness the energy released from the fusion of hydrogen isotopes to provide clean and safe electrical power. Both use helical (spiraling) magnetic fields to contain the hot plasma fuel in a donut-shaped chamber. In a tokamak, this field is generated both by external electromagnets and a large electrical current that is driven in the plasma itself. Driving and sustaining this plasma current, and its impact on stability and transport of energy and particles, is a major focus of the research at MIT.

The stellarator concept takes a different approach. First invented by the noted astrophysicist and fusion pioneer Lyman Spitzer of Princeton University in 1950, the stellarator provides the entire helical field through external electromagnets formed in highly complex and twisted shapes. 

Future experiments at W7-X will address the role that plasma turbulence plays in limiting overall performance, and PSFC researchers are working with the W7-X group to investigate this. One PSFC team — principal research scientist Jim Terry and postdoctoral researcher Seung-Gyou Baek — will develop a fast camera system for viewing light emitted from the plasma, and will make important measurements of turbulence near the edge of the plasma. The other team — physics professor Miklos Porkolab and staff scientist Eric Edlund — will develop a specialized interferometer for imaging density fluctuations deep in the hot plasma core. The issues surrounding turbulence are important in stellarators, as they are in tokamaks, since turbulence moves heat and particles across the confining magnetic field faster than would otherwise occur. Both teams expect to have first measurements during the 2017 experimental campaign.

Read the original article on PSFC's website here.

The Russian Domestic Agency for ITER reports that two shipments recently left factories in Saint Petersburg and Podolsk for the ITER Project.

The first shipment contains correction coil busbars—the components that connect magnet coils to their power sources—as well as flexible links for busbar interconnections. These components were transported by truck (pictured) from the Efremov Institute (NIIEFA) in Saint Petersburg directly to the ITER site. The fabrication and supply of switching equipment, busbars and energy-absorbing resistors for the power supply and the protection of the ITER superconducting magnetic system add up to the most expensive, and one of the most complicated, systems falling within the scope of in-kind procurement from Russia (25 systems in all). In accordance with the busbar Procurement Arrangement, NIIEFA will manufacture and ship approximately 5.4 km of busbars with a total weight exceeding 500 tons.

In the second shipment, four lengths of poloidal field superconductor (two unit lengths of 720 metres and two of 414 metres) were loaded onto trucks at the Cable Institute (JSC VNIIKP) in Podolsk for delivery to the European jacketing line at Criotec (Chivasso, Italy). The conductors are destined for the ITER poloidal field coil magnet system.

-- Alexander Petrov, ITER Russia

On 4 December the Programme Manager of EUROfusion, Tony Donné, visited ITER and spoke to staff in the ITER auditorium.

EUROfusion is a consortium of 29 research organisations and universities from 26 European countries plus Switzerland that is collaborating to achieve Europe's Fusion Roadmap, which outlines the most efficient way to realize fusion electricity by 2050. ITER is the key facility on the road to fusion energy, and Professor Donné stressed in his talk that everything possible must be done to support ITER construction, optimize ITER operation and ensure minimal delay to the next-phase device, DEMO.

Professor Donné also advocated the extension of the European tokamak JET under an international regime in support of ITER. The prolonged use of JET as a risk-mitigation device for ITER and for the training of a generation of scientists, engineers and technicians for ITER could give the world fusion community access to deuterium-tritium plasmas approximately 10 years before ITER.

Read more about EUROfusion, Europe's Fusion Roadmap, and JET.

The aim of the WEST project is to turn the Tore Supra tokamak (France) into a test bed for ITER, with an actively cooled ITER-like tungstendivertor.

Component installation is underway. The latest WEST Newsletter (#11) reports on the most recent milestone: the installation of the divertor coil casings. Two stainless steel rings constituting the housing for the conductor windings are now assembled and positioned inside the vacuum vessel at their nominal position. The building of the coil winding can now begin.

(Photo Christophe Roux CEA-IRFM)

Read all the latest from WEST in Newsletter 11 here.

An 18-month development program to prototype remote handling tooling for the ITER fusion device was demonstrated on 26 and 27 October as part of collaboration between the European Domestic Agency for ITER and the Culham Centre for Fusion Energy (CCFE) in the UK.

Representatives from the ITER Organization, the European agency, Assystem UK, and AMEC Foster Wheeler were at Culham to see a fully remote deployment of prototype remote pipe cutting and welding tooling developed by Culham's RACE (Remote Applications in Challenging Environments).

Under a grant from the European Domestic Agency, RACE and CCFE's Engineering Implementation Department have produced a set of prototype tools intended for eventual use maintaining the neutral beam heating systems at ITER. Up to now, remote cutting and welding of process piping to the required codes, and under the challenging conditions of the ITER tokamak, had not been demonstrated, and is one of the higher risk areas across the ITER remote maintenance strategy.

ITER will rely on remote handling for maintenance operations where space and/or environmental conditions in the machine do not allow manual intervention. Interconnected components, pipes, cranes and tooling will all need to be routinely repaired and maintained with millimetric accuracy.

Read the full reports of the event on the European Domestic Agency and CCFE websites.

​General Atomics (San Diego) opened a facility making the world's largest magnets for rare public tours on 2 October in honour of the nationwide Manufacturing Day in the US.

The factory in Poway, California, is making seven giant magnet modules, each weighing approximately 110 metric tons, for the $20 billion International Thermonuclear Experimental Reactor, or ITER, being built in France.

Photo by Chris Jennewein

Read the full article in the Times of San Diego.

Click here to watch.

​​In this five-minute video produced by the European Domestic Agency for ITER, the type of specialized robotics, networks and virtual reality techniques used in deep sea or space operations find their application for ITER, where remote handling will be used to perform maintenance, inspection and repair tasks.

The European agency is responsible for delivering four remote handling systems to ITER: the divertor remote handling system, the neutral beam remote handling system, the cask transfer system for activated components, and the in-vessel viewing and metrology system—in all, about EUR 250 million of investment.

Recently, conclusive tests were carried out at the VTT Technical Research Centre in Tampere, Finland for the remote handling of ITER divertor cassettes—10-ton components that must be installed and/or exchanged through high-tech robotics. 

Watch the video here.

​The ITER Commission locale d'information (the citizen watchdog group that monitors ITER activities in accordance with the French 2006 Transparency and Nuclear Safety Act) held its plenary session in the ITER Council chamber on 18 May.

Read more here​.