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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Advance in Japanese Superconductor for ITER

Oct 15, 2014, 2:00 PM
4h 45m
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 4


Dr Yoshihiko NUNOYA (Japan Atomic Enegry Agency)


Japan Atomic Energy Agency (JAEA) has been manufacturing superconductors for ITER Toroidal Filed (TF) coils and Center Solenoid (CS). Since CS will be operated in the pulse mode, development of conductor that has stable performance against cyclic electromagnetic force was necessary. Conductor with shorter twist pitch cable to yield higher cable stiffness was successfully developed and no degradation against cyclic electromagnetic force was observed in a full-size conductor test. This result allowed JAEA to start CS cable manufacturing in 2013 consequently. At the end of 2013, manufacturing of 91% of Japanese TF conductors was successfully completed. All superconducting strand for TF whose total length is 23,000 km has completed in 6 years. It was demonstrated that strand performance has maintained stable from the initial to the final production.
Country or International Organisation Japan
Paper Number FIP/P4-21

Primary author

Dr Yoshihiko NUNOYA (Japan Atomic Enegry Agency)


Mr Fumiaki TSUTSUMI (Japan Atomic Energy Agency) Mr Jun TAKAMURA (Japan Atomic Energy Agency) Dr Kazuki SHIBUTANI ( Mr Masayuki OSHIKIRI (Japan Atomic Energy Agency) Mr Shinji CHUHEISHI (Japan Atomic Energy Agency) Mr Tomone SUWA (Japan Atomic Energy Agency) Dr Yoshihiro NABARA (Japan Atomic Egency Agency) Dr Yoshikazu TAKAHASHI (Japan Atomic Energy Agency)

Presentation materials