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

  • Seismic analysis | Collaboration helps to keep ITER on solid ground

    At ITER, system designers have to ensure that their equipment will withstand earthquakes, large and small. Equipment required for the safety of ITER has to be d [...]

    Read more

  • Assembly preparation | Busy month ahead

    This year at ITER, the month of March will not only mark the coming of spring. It will also set into motion a series of spectacular operations in the assembly t [...]

    Read more

  • Vacuum vessel | Last phase for Europe's sector #5

    The first European vacuum vessel sector is entering an important and critical phase: the assembly and welding of four segments into the D-shaped sector. Und [...]

    Read more

  • Magnet system | Second coil comes out of the cold

    A second ring-shaped poloidal field coil has successfully passed all thermal testing. Following in the footsteps of poloidal field coil #6 (PF6), which complet [...]

    Read more

  • Thermal shield | Practising the embrace

    In the ITER Assembly Hall, fitting tests are underway on two outboard thermal shield panels. Once paired, the 11-metre-tall, silver-plated components will [...]

    Read more

Of Interest

See archived entries

Cryostat Workshop

Lower cylinder and base take shape

The lower cylinder of the ITER cryostat represents only one-third of the whole component's height. Still—it dwarfs the men standing nearby.
 
Nothing gives a better sense of the size of the ITER machine than the ongoing works in the Cryostat Workshop, where the the lower cylinder and base section of the cryostat are being assembled and welded under the responsibility of Indian contractor Larsen & Toubro. (Click to view larger version...)
Nothing gives a better sense of the size of the ITER machine than the ongoing works in the Cryostat Workshop, where the the lower cylinder and base section of the cryostat are being assembled and welded under the responsibility of Indian contractor Larsen & Toubro.
Both tiers of the cryostat lower cylinder are now in place, stacked one on top of the other. The lower tier is already fully welded, while the segments of the upper tier are being readied for welding operations.
 
At the other end of the football-field-size Cryostat Workshop, the base of the cryostat is progressively taking shape.
 
The base section—1,250 tonnes—is the single heaviest piece of the ITER machine. Its form can be compared to that of a deep soup plate, with a 20-metre-in-diameter base, vertical walls and a broad rim (1.30 metre wide and 30 metres in diameter).
 
The lower portion of this sub-component (equivalent to the bottom of the soup plate) has been finalized. All non-destructive examination tests on the welds were completed, as well as all dimensional/tolerance tests.
 
On the pedestal rim (the soup plate's rim) welding is now 50 percent complete. For the moment, the space between the two is empty—in other words, the plate has a bottom and a rim, but nothing connecting the two.
 
"By fitting what we call the 'main shell' only after the pedestal ring and the bottom of the base section are installed provides more flexibility for adjustments," explains ITER cryostat engineer Guillaume Vitupier.
 
Further explanation on the ongoing operations can be found in the gallery below.


return to the latest published articles