ITER superconducting magnet system and manufacturing technology development
ITER超電導コイルシステムとその製作技術の開発
小泉 徳潔; 中嶋 秀夫
Koizumi, Norikiyo; Nakajima, Hideo
招待講演として、ITERの超伝導コイル・システム、及びその調達分担等について説明し、加えて、ITER参加各極における超伝導コイルの開発状況について発表する。具体的には、日本では約50%のTF導体の製作を完了し、ロシア,中国では、ダミー導体の製作を完了した。また、日本,欧州でTFコイル実規模試作を実施しており、高精度の製作技術の開発に成功し、実機TFコイルの製作に目途を立てることができた。
The ITER superconducting magnet system consists of 18 TF coils, 1 CS, 6 PF coils and 18 Correction coils. The TF conductors will be manufactured by China (7%), EU (20%), Korea (20%), Japan (25%), Russia (20%) and US (8%), TF coils by EU (10 coils) and Japan (9 coils), in which one spare is included, all TF coil cases by Japan, all CS conductors by Japan, all CS (7 modules including a spare), PF conductor by China (65%), EU (21%) and Russia (14%), PF coils by EU (5 coils) and Russia (1 coil), all Correction coils by China and all feeder by China, respectively. Since the TF coil manufacture is one of long-lead items, the procurement of the TF conductors have been started. More than 15 TF conductors have already been fabricated in Japan and dummy conductors were manufactured by China and Russia. Large-scale trials for TF coil manufacture have also been started and successful results were obtained in both EU and Japan Domestic Agencies.