Enable Recite

Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • 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 [...]

    Read more

  • 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 [...]

    Read more

  • 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 [...]

    Read more

  • 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 [...]

    Read more

  • 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 [...]

    Read more

Of Interest

See archived entries

Review affirms robust design of ITER's cryolines

Natural (-10 °C) and artificial (-269 °C) cooling: the international review panel in action last week. (Click to view larger version...)
Natural (-10 °C) and artificial (-269 °C) cooling: the international review panel in action last week.
The fact that inside a fusion device it gets hotter than in the core of the sun leaves Hans Quack pretty cold. "Fusion is in fact 40 percent cryogenics," he says, and—being a professor for refrigeration and cryogenics at the University of Dresden—he knows.

At JET, cryogenics was already used for the vacuum cryopanels and for the handling of the fuel. The next step—using cryogenic refrigeration for the superconducting magnets—was pioneered at EAST, KSTAR and Wendelstein. But the ITER cryogenic system is an order of magnitude larger and much more complex than what has been built before, and is only comparable to the cryogenic system of the LHC at CERN.

The ITER machine will rely on a cryoplant, which will produce the required cooling power, and a cryo-distribution system to distribute the helium coolant to ITER's high-field magnets, cryopumps and thermal shields. "Cryolines will be crossing into the reactor," says Hans Quack "a situation that you don't have in a fission device."

This complex and sophisticated system of cryogenic transfer lines and manifolds was the subject of discussion at the ITER Headquarters last week during the conceptual design review of ITER's cryolines that was chaired by Hans Quack, and that brought together many international experts. "The very good level of preparation was recognized by the reviewers," said Luigi Serio, Responsible Officer for ITER's cryosystem, summarizing the review. "We are now sure that we have a robust design and that we can proceed with procurement of the cryolines for ITER."

The Procurement Arrangement is expected to be signed at the end of this month.


return to the latest published articles