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

  • 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

  • Image of the week | This circle is for the ring

    Another concentric circle has been drawn at the bottom of the machine assembly pit, formed by the temporary supports recently installed for poloidal field coil [...]

    Read more

  • Feeders | Multi-lane thruways into the machine

    The ITER superconducting coils thrive on a simple diet of electrical power and cooling fluids. The industrial installation on site is scaled to provide both, bu [...]

    Read more

  • Cryostat Workshop | Top lid enters the stage

    In this vast workshop over the past five years, the different sections of the ITER cryostat have been assembled and welded under India's responsibility. The bas [...]

    Read more

  • Blanket first wall | Manufacturing kicks off in Europe

    For one of the most demanding technological components of the ITER machine—the first wall of the blanket—the European Domestic Agency Fusion for Energy made the [...]

    Read more

Of Interest

See archived entries

Cryostat

Home stretch for base and lower cylinder

Just over two years after the first welding activities were initiated in the Cryostat Workshop at ITER, Indian Domestic Agency contractors are executing the final assembly tasks on the two lower sections of the cryostat—the base and the lower cylinder. Site acceptance tests are planned in March/April.
 
The components of the cryostat base—the 20-metre-in-diameter bottom disk, side shells, and 30-metre-in-diameter pedestal ring—are positioned for final assembly in the Cryostat Workshop. After welding, tests and final machining, site acceptance tests will be carried out in April 2019. (Click to view larger version...)
The components of the cryostat base—the 20-metre-in-diameter bottom disk, side shells, and 30-metre-in-diameter pedestal ring—are positioned for final assembly in the Cryostat Workshop. After welding, tests and final machining, site acceptance tests will be carried out in April 2019.
On large steel frames at either end of the Cryostat Workshop ITER's largest component—and the world's largest stainless steel high-vacuum pressure chamber—is taking shape. The 29 x 29 metre cryostat has two important functions in the ITER machine: it provides a vacuum environment to critical "cold" components (the magnets operating at 4.5 K and thermal shield operating at 80 K); and it has a structural role in supporting the mass of the Tokamak and transferring horizontal and rotational forces to the radial walls.

The assembly of the cryostat has been underway since September 2016, when teams of welding specialists began assembling the pie-slice-shaped segments of tier one of the base. Work began in 2017 on the lower cylinder and today, the fabrication of both lower sections has advanced to the final activity stage under Indian contractor Larsen & Toubro (manufacturing design, fabrication and assembly) and sub-contractor MAN Energy Solutions (welding).

The last seam welds are underway now on the lower cylinder, while the three parts of the base—lower sandwich, upper pedestal, and vertical shells—have been aligned for final welding and assembly.

See more detail in the gallery below. 



return to the latest published articles