ITER Organization and Japan sign first Procurement Arrangement: Superconductor Manufacturing on Industrial Scale
This Procurement Arrangement is for part of the conductor for the 18 Toroidal Field (TF) Coils that will confine the plasma within the ITER machine. “Being the first Procurement Arrangement, it clearly signals that ITER procurements have begun and on a big scale”, Kaname Ikeda, ITER Director General, said.
With the manufacture of approximately 400 tons of niobium3-tin (Nb3Sn) conductor cables it is one of the largest superconducting cable procurements in history. “The amount of material that is going to be manufactured is certainly unprecedented in its scale and it signals the first step in the construction of the ITER magnets”, Neil Mitchell, responsible officer for the ITER Magnet System said.
The ITER TF coils are designed to have a magnetic energy of 41 Giga Joule and a maximum magnetic field of 11.8 tesla. Their design is the result of an international research and development effort. The manufacture of these strands with about 10000 micron-scale filaments per strand is extremely complex and uses cutting-edge technology. The cable has been developed through a series of tests on different designs. Performance checks and quality control during the production process will be of the highest importance for the success of ITER.
About 90% of the ITER components and structures are provided “in kind” by the Members, through the Domestic Agencies. Following this Agreement, ten of the 18 coil winding packs for ITER will be produced in Europe, including one spare. The nine to be produced in Japan are the subject of today’s signature.
Toshi Nagaoka expressed his satisfaction at being part of the first signing ceremony and stated that signature of the Procurement Arrangement will now allow the Japanese Domestic Agency to start the procurement for ITER.
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