Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Lower cylinder | A transfer that felt like art

    Art has little to do with the transfer of a giant component. On Monday however, as ITER was preparing to celebrate Leonardo da Vinci's 500th anniversary, scienc [...]

    Read more

  • Event | ITER in Da Vinci mode

    'The most noble pleasure is the joy of understanding.' Written more than 500 years ago in the private journal of Leonardo da Vinci, these words still felt timel [...]

    Read more

  • Image of the week | When the Pit inspires an artist

    On a Sunday morning, when all is silent and still on the ITER platform, an eerie dimension is added to the Tokamak Pit. Hidden eyes seem to peer through the [...]

    Read more

  • Leonardo and innovation | In the steps of a giant

    To the members of a panel on innovation and Italian leadership, the moderator had one question: how do you see Leonardo da Vinci's scientific method—a systemati [...]

    Read more

  • Image of the week | Sandblasting

    Whether at home or in a nuclear installation, a painting job begins with surface preparation. In the ITER Tokamak Pit, close to 3,000 square metres of wall need [...]

    Read more

Of Interest

See archived entries

Technological leap forward for coil manufacturing in Europe

Representatives of the European and Japanese Domestic Agencies, Japanese manufacturers Toshiba and Mitsubishi, and the ASG consortium (ASG, Iberdrola and Elytt) pose inside of the completed, and successfully tested, prototype. (Click to view larger version...)
Representatives of the European and Japanese Domestic Agencies, Japanese manufacturers Toshiba and Mitsubishi, and the ASG consortium (ASG, Iberdrola and Elytt) pose inside of the completed, and successfully tested, prototype.
Europe has successfully completed tests on the first full-size, superconducting prototype of a toroidal field coil "double pancake."

Each one of ITER's giant, D-shaped toroidal field coils will contain seven double pancakes. These pancakes, or layers, are composed of a length of superconductor, which carries the electrical current, and a stainless steel D-shaped plate called a radial plate, which holds and mechanically supports the conductor through groves machined on both sides along a spiral trajectory.

In order to verify the prototype's ability to withstand the cryogenic temperatures of ITER, it was cooled to the temperature of liquid nitrogen (approximately -196 ˚C) and then returned to room temperature. The prototype was also thoroughly tested for its response to high voltage and was submitted to leak testing. All tests were passed without problem.

The successful completion of these technically demanding tests was celebrated as an important milestone in Europe, which is responsible for the fabrication of 10 toroidal field coils. (Japan will manufacture the other eight required for Tokamak assembly plus one spare.)

For Alessandro Bonito-Oliva, European Domestic Agency project manager for magnets, "it is an important technological step towards the manufacturing of one of the biggest and most complex superconducting coils ever produced." He credits successful collaboration with the manufacturing consortium (ASG Superconductors, Italy; Iberdrola Ingeneria, Spain; and Elytt Energy, Spain) and radial plate manufacturers CNIM (France) and SIMIC (Italy), as well as collaboration with the ITER Organization central team and the Japanese Domestic Agency.

Series production is progressing well in Europe for the toroidal field coils. Twelve radial plates have left the manufacturing lines at CNIM and SIMIC and 25 double pancakes have been wound at the ASG facility in La Spezia, Italy. Fifteen of the wound double pancakes have been through the process of heat treatment and 11 have been transferred inside of a radial plate.

Read the original story on the European Domestic Agency website.


return to the latest published articles