Back to the underground cathedral

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News & Media

Latest ITER Newsline

  • Cryodistribution | Blowing cold and hot

    If the cryodistribution system were a railroad, the cryogenic termination cold box would be its main switch. A massive structure packed with pipes, valves, elec [...]

    Read more

  • Pre-assembly activities | Captured from on high

    With assembly tools standing 22 metres tall, massive bridge cranes straddling the width of the building, and alien-shaped components placed at regular intervals [...]

    Read more

  • 27th ITER Council | Assembly moves ahead

    The Twenty-Seventh Meeting of the ITER Council took place by videoconference on 18 and 19 November 2020, chaired by LUO Delong from China. Representat [...]

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  • Fusion world | Translating JET into ITER

    With an inner wall made of beryllium and tungsten, the European tokamak JET is the only tokamak in the world to share the same material environment as ITER. Whe [...]

    Read more

  • Worksite | Major progress you don't see from the air

    There was a time when aerial pictures of the ITER worksite taken at six-month intervals showed spectacular change. Buildings and structures sprouted from previo [...]

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Of Interest

See archived entries

Back to the underground cathedral

In the last issue of Newsline we shared a picture of the Tokamak's subterranean world, showing the cavernous space that exists between the lower basement slab (B2) and the next-level slab (B1) of the Tokamak Complex.

"What is today a vast open space around the Tokamak assembly arena," the article said, "will one day be occupied by the dense piping of the cooling water system primary circuit."



Click on the image above to watch the animation.

Miikka Kotamaki of the ITER Design Integration Division has created a GIF image that brings home the reality of those words, by showing how the space will progressively fill up with pipes, cables, feeders and busbars.

The sequence is as follows: first the piping for building services such as compressed air, demineralized water, liquid and gaseous nitrogen, helium, fire protection, and drainage is set into place (in blue); followed by cable trays (light grey), cryolines (deep blue), and cooling water lines (not visible as they are located behind and above the camera's viewpoint).

Next come additional cable trays (light grey), massive magnet feeders and feeder boxes (yellow) and busbars (gold). Other ancillary equipment such as fast discharge units is introduced and connected to the feeder boxes.

The last step in transforming the subterranean cathedral into a forest of piping and equipment is the installation of vacuum pipes and pumps and their connection to the feeder boxes (light blue).

German photographer Christian Luenig experimented with a different approach—a black and white rendition reminiscent of drypoint drawings. (Christian Lünig/VG Bild und Kunst) (Click to view larger version...)
German photographer Christian Luenig experimented with a different approach—a black and white rendition reminiscent of drypoint drawings. (Christian Lünig/VG Bild und Kunst)
While Miikka was busy creating his animation, a German artist—photographer Christian Luenig, whose work on ITER we presented in June 2015—was experimenting with a different approach: the drypoint drawing, which perfectly expresses the mineral atmosphere of ITER's underground cathedral.



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