Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Question of the week | Will fusion run out of fuel?

    One of the paradoxes of fusion, the virtually inexhaustible energy of the future, is that it relies on an element that does not exist—or just barely. Tritium, o [...]

    Read more

  • Managing data | Setting up a robust process

    Are the ITER systems and processes robust enough to manage the technical and project data for a program of ITER's complexity? Will quality information be made a [...]

    Read more

  • Image of the week | Bullseye

    Two perfectly circular structures, looking a lot like archery targets, have been installed on the west-facing wall of the Tokamak Complex. They are not for sh [...]

    Read more

  • Art and science | Seeking new perspectives on fusion

    Standing in the middle of the Tokamak Building, sound artist Julian Weaver positions his 3D microphone near one of the openings of the bioshield to record the s [...]

    Read more

  • Worksite photos | The view one never tires of

    For the past three-and a half years, ITER Communication has been documenting construction progress from the top of the tallest crane on the ITER worksite. Altho [...]

    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