Nb 3Sn superconducting strand development in Japan for ITER

• Published in: Cryogenics (Guildford) Vol. 34; pp. 505 - 508
• Main Authors: Nishi, Masataka, Yoshida, Kiyoshi, Ando, Toshinari, Takahashi, Yoshikazu, Isono, Takaaki, Nunoya, Yoshihiko, Sugimoto, Makoto, Hosono, Fumikazu, Wadayama, Yoshihide, Ogata, Hiroshige, Yasukawa, Yukio, Sasaki, Tomoyuki, Tsuji, Hiroshi
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 1994
• ISSN: 0011-2275; 1879-2235
• DOI: 10.1016/S0011-2275(05)80117-1

The development work of the high-performance Nb 3Sn superconducting strand for the Center Solenoid Coil, a high-field large pulse coil, of the International Thermonuclear Experimental Reactor (ITER) have been progressed by Japan Atomic Energy Research Institute with Japanese wire and cable companies. The main. required performances for the 0.8 mm-diameter chromium plated strand were 550 A/mm 2 or higher as the critical current density at 12 T and 200 mJ/cm 3 or lower as the hysteresis loss for ±3T.As the result of research and development work, the reliable manufacturing process of the high-performance strand was established, and the mass-production for the ITER Center Solenoid Model Coil was started.