Subscribe options

Select your newsletters:

Please enter your email address:

@

News & Media

Latest ITER Newsline

  • WEST | Revamped tokamak completes 1st phase of operation

    One day, in the latter half of this decade, it will be routine at ITER: dozens of operators, with eyes riveted to their individual monitors as numbers, graphs a [...]

    Read more

  • Roof modules | Patience, precision and a crane's long arm

    In the spring of 2020 a new and strategic phase of ITER construction will begin: the assembly of the ITER Tokamak. In order to deliver machine components to the [...]

    Read more

  • Image of the week | "Bringing light and hope"

    Most international organizations are headquartered in large cities—the UN in New York, UNESCO and the International Energy Agency in Paris, the IAEA in Vienna, [...]

    Read more

  • Outreach in China | A week devoted to fusion

    A new biennial event in China seeks to create a comprehensive exchange platform for the scientists, engineers and industries that are driving the country's stro [...]

    Read more

  • Monaco-ITER Fellows | New campaign announced

    The seventh recruitment campaign for the Monaco-ITER postdoctoral fellowship program opens on 13 January. Since 2008, thirty postdocs have carried out origin [...]

    Read more

Of Interest

See archived entries

Europe manufactures its first cryopump components

European Domestic Agency, Fusion for Energy

An isometric view of the ITER pre-production cryopump, that will serve as a spare for ITER's eight cryopumps. (Click to view larger version...)
An isometric view of the ITER pre-production cryopump, that will serve as a spare for ITER's eight cryopumps.
The European Domestic Agency for ITER, Fusion for Energy, started the new year with the completion of an important milestone linked to Europe's contribution to ITER: the successful manufacturing of the cryopanels and thermal shields for the pre-production cryopump (PPC).

The pre-production cryopump will be the spare for ITER's eight cryopumps (two in the cryostat and six in the torus). The cryopumps will be constantly operational and will play a vital role in the production of the ultra-high vacuum inside the vacuum vessel. In a nutshell, these components will help attain optimum plasma performance.

After an intense period of research, development and design, Fusion for Energy was entrusted with the responsibility of manufacturing the components. In November 2012, a series of contracts were signed with four companies based in Germany and in France, as well as with the Karlsruhe Institute of Technology (KIT) for the manufacturing of the pre-production cryopump.

Part of the pre-production cryopump thermal shields that will protect the cryopanels from excessive thermal loads. (Click to view larger version...)
Part of the pre-production cryopump thermal shields that will protect the cryopanels from excessive thermal loads.
The pre-production cryopump and the rest of the torus cryopumps will operate with helium at 3.5 K (-269.5ºC). They consist of the cryopanels, which perform the pumping action, and thermal shields that protect the cryopanels from excessive thermal loads. The components were put through complex dimensional controls and ultra-high vacuum leak tests.

The cryopanels have already been delivered to KIT and the thermal shields to Research Instruments, a German company that will integrate the manufacturing activities. At KIT, the cryopanels will be sprayed with charcoal, which is necessary for the pumping of helium and hydrogen isotopes from the torus. Research Instruments, together with Alsyom/Seiv will play a pivotal role in the production of the rest of the cryopump components, assembly, as well as the final cold ultra-high vacuum leak tests for the pre-production cryopump.

Read the full article here.



return to the latest published articles