Subscribe options

Select your newsletters:

Please enter your email address:

@

News & Media

Latest ITER Newsline

  • FEC2020 | Seeking sponsors for 28th IAEA Fusion Energy Conference

    For only the third time since 1961, the International Atomic Energy Agency's Fusion Energy Conference will be taking place in France—hosted jointly by the Frenc [...]

    Read more

  • Nuclear safety | Under constant scrutiny

    Because one of the elements involved in the fusion reaction is the radioactive isotope tritium, and because the hydrogen fusion reaction itself generates a high [...]

    Read more

  • Power conversion | Alien structures and strange contraptions

    There are places in ITER that seem to belong to another world, places full of alien structures and strange contraptions. The feeling—a mixture of awe and puzzle [...]

    Read more

  • Tokamak Complex | A changing landscape

    For the past three years, the view from the top of the highest worksite crane has not changed much. Inside of the Tokamak Complex, 80 metres below, concrete gal [...]

    Read more

  • Ion cyclotron heating | How to pump 20 MW of power into 1 gram of plasma

    To power the ion cyclotron system, the ITER Organization and its partners are designing not only new antennas, which will be housed in the tokamak vessel, but a [...]

    Read more

Of Interest

See archived entries

Conceptual design for ITER's vacuum lines completed

Sabina Griffith

Preparation is everything: no real design recommendation or improvement could be proposed. (Click to view larger version...)
Preparation is everything: no real design recommendation or improvement could be proposed.
The vacuum lines are the veins of the ITER machine. They transport the exhaust from the vacuum vessel, cryostat and other systems to the tritium plant for cleaning and reprocessing. They are essential for the majority of ITER systems to function.

An impressive 15-kilometre network of stainless steel piping - some of which is designed to safely contain a higher tritium throughput than any other device—forms one of ITER's most extensive distributed systems along with cryo and water cooling.

''It now appears fully achievable to realize the signing of the Procurement Arrangement in March as scheduled,'' design leader Robert Pearce (centre) said after the succesful meeting. (Click to view larger version...)
''It now appears fully achievable to realize the signing of the Procurement Arrangement in March as scheduled,'' design leader Robert Pearce (centre) said after the succesful meeting.
As a critical system for the successful achievement of First Plasma, the completion of the conceptual design review for the main vacuum lines and assembly leak detection equipment, this week, was a rewarding result for a true team effort. "This was truly a comprehensive and well advanced review," was the comment from Dave Rasmussen from US ITER, one of the many experienced vacuum experts on the review panel.

Among other topics, the panel was asked to insure that the impacts of non-achievable requirements have been correctly assessed. However the panel could not identify any issues and one distinguished panel member, Rainer Laesser of F4E, in his final conclusions expressed his slight disappointment with the fact that no real design recommendation or improvement could be proposed. In total, the panel felt that the whole review was meticulously prepared and conveyed exceptional understanding of tokamak construction.

"It now appears fully achievable to realize the signing of the Procurement Arrangement in March as scheduled," design leader Robert Pearce said. Soon after, the paperwork will turn into real hardware, as the first vacuum lines are expected to be installed in 2013.


return to the latest published articles