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  • Correction coils | First of 18 lowered

    In all tokamak devices, ITER included, small deviations in the shape or position of the magnets cause unwanted field perturbations that can affect plasma stabil [...]

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  • Top management | Youngeek Jung, head of construction

    What Youngeek Jung remembers distinctly about his childhood and teenage years is being hungry and cold. South Korea, where he was born in 1956, was in ruins. 'W [...]

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  • Central solenoid module | Tests and verifications prior to assembly

    In January next year, the 'most powerful magnet in the world' will begin taking shape. The first module of the Tokamak's central solenoid will be positioned on [...]

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  • Contract management | E-procurement helps to simplify and streamline

    The Procurement & Contracts Division at the ITER Organization is rolling out a new e-procurement tool that will simplify and streamline contract management [...]

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  • Cooling water plant | Partners work in lockstep to keep ITER cool

    Much of the cooling water plant is now ready for commissioning, thanks to a well-executed plan and close coordination among partners. 'Sooner or later, all heat [...]

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Of Interest

See archived entries

Conceptual design for ITER's vacuum lines completed

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.


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