Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • IAEA and ITER | Even closer cooperation

    Under Practical Arrangements signed in June, the International Atomic Energy Agency and the ITER Organization will be expanding and deepening a long history of [...]

    Read more

  • Neutral Beam Test Facility | High voltage component for MITICA

    Creating reliable high-energy neutral beams at ITER parameters, from a negative ion source, requires such a large technological leap that the components of the [...]

    Read more

  • 24th ITER Council | En route to First Plasma, 63% of the work is done

    The ITER Council has met for the twenty-fourth time since the signature of the ITER Agreement. Representatives from China, the European Union, India, Japan, Kor [...]

    Read more

  • Upper ports | A very international effort

    The 18 upper ports of the ITER vacuum vessel are procured by Russia, manufactured in Germany, and mounted (in part) on the vessel sectors by contractors in Ital [...]

    Read more

  • Paint job | One level done, five to go

    The job is done and the effect is spectacular. At the deepest basement level (B2) of the Tokamak Building, the floors, walls, and ceilings are now perfectly whi [...]

    Read more

Of Interest

See archived entries

Europe completes niobium-tin strand production

The final inspection on the completed wire at an eddy current test station at Bruker EAS, in Germany. (Photo courtesy of Bruker EAS GmbH.) (Click to view larger version...)
The final inspection on the completed wire at an eddy current test station at Bruker EAS, in Germany. (Photo courtesy of Bruker EAS GmbH.)
The European Domestic Agency has announced the realization of an important procurement milestone for ITER: the completion of Europe's share of the niobium-tin (Nb3Sn) superconducting strand required for the fabrication of ITER's powerful toroidal field coils.

Approximately 380 tonnes of Nb3Sn superconducting strand, or "wire," is required for ITER's toroidal field magnets. The wire is the key component that will allow the toroidal field magnets to reach 12 T and contribute to the confinement of the plasma. Each strand is less than 1 mm in diameter, and yet can sustain very high current when cooled down to "superconducting" temperatures (-269 degrees Celsius).

The European share of toroidal field strand procurement amounts to 97 tonnes (20.2 percent of toroidal field strands). Two suppliers—Bruker European Advanced Superconductors and Oxford Superconducting Technology—carried out the fabrication. The superconducting wire was produced, tested, approved by the European Domestic Agency, Fusion for Energy, and finally cleared by the ITER Organization.

Europe is the third ITER Domestic Agency, after Korea and Japan, to complete toroidal field strand production and all related ITER Organization control points.

The more than 1,500 production units produced by the two manufacturers will be used to fabricate the cables for the European toroidal field coil cable-in-conduit conductor (CICC) lengths.

Fifty percent of conductor unit lengths have already been produced and delivered to ASG Superconductors SpA, the Italian facility in charge of manufacturing the toroidal field coil winding packs. The remaining conductor lengths will be finalized in 2015.


return to the latest published articles