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News & Media

Latest ITER Newsline

  • The physics behind the transition to H-mode

    H‐mode—or thesudden improvement of plasma confinement in the magnetic field of tokamaksby approximatelya factor of two—is thehigh confinement regime that all mo [...]

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  • In search of the green plasma

    Sébastien König's core competence is in planning and scheduling; his passion is in understanding the workings of the Universe. In his previous life, before join [...]

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  • An outing into the future

    Open Doors days occur with scientific regularity at ITER (spring and autumn) and yet—due to the rapid evolution of work on site—each event offers something new. [...]

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  • Fusion "grandfather" tells family story

    Grandfathers like to tell stories. And Robert Aymar, the 'grandfather' of the French fusion community, is no exception. 'Being so old,' he quipped at last week' [...]

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  • An AC/DC adapter ... ITER size

    Like flashlight and smartphones, the ITER magnets—all 10,000 tonnes of them—will run on direct current (DC). And like flashlight and smartphones they will need [...]

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Of Interest

See archived articles

Neutrons join generations

-Michael Loughlin, Nucl./Shield. Analysis and Coordinator

The neutron family (from left to right): Shrichand Jakhar (India), Hiro Iida (Japan), Mun-Seong Cheon (Korea), Raul Pampin (EU), Michael Loughlin (ITER), Russ Feder (US), Dieter Leichtle (EU), Masao Ishikawa (Japan), Jesus Izquierdo (EU), Eduard Polunovskiy (ITER). Taking part but not pictured Luciano Bertalot (ITER), Ulrich Fischer (EU), Alfred Hogenbirk (EU), Mahmoud Youssef (US); additional contributions from Zaixin Li (China) and the FDS Team (China). (Click to view larger version...)
The neutron family (from left to right): Shrichand Jakhar (India), Hiro Iida (Japan), Mun-Seong Cheon (Korea), Raul Pampin (EU), Michael Loughlin (ITER), Russ Feder (US), Dieter Leichtle (EU), Masao Ishikawa (Japan), Jesus Izquierdo (EU), Eduard Polunovskiy (ITER). Taking part but not pictured Luciano Bertalot (ITER), Ulrich Fischer (EU), Alfred Hogenbirk (EU), Mahmoud Youssef (US); additional contributions from Zaixin Li (China) and the FDS Team (China).
The integrity of all components of ITER is demonstrated by a suite of complex computer simulations. All of these components will be subject to nuclear radiation of varying degrees and neutronics analyses is required to determine radiation exposure and response of all of these components.

The size and complexity of this task means it cannot be addressed by just one party but is an integral part of the design process which is carried out within the ITER Organization and amongst all Domestic Agencies. How do we ensure the consistency and quality of these analyses carried out by many teams?

This was the question which was addressed at a meeting involving several experts representing the ITER Organization, Japan, India, Europe, Korea and the US as well as associations from within Europe. The aim was to improve the techniques of analysis and after three days of discussion the result was an improved understanding of the specification of how neutronics analyses should be done and reported.

This outcome was the product of a collaboration between younger scientists and some of the most experienced analysts in the world working together. The younger scientists take back to their countries the benefits of training in advance technologies of radiation transport modelling from the experience of older heads, who in return get the energy, enterprise and innovation from newcomers. These are some of the early spin-offs from the world wide collaborative effort which is ITER. It was also an occasion when new friends were made and an optimistic view of the future was engendered.

Click here if you want to find out how to golf with a neutron ...


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