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Report No.

Critical current measurement of prototype NbTi cable-in-conduit conductor for JT-60SA

Kizu, Kaname; Tsuchiya, Katsuhiko; Obana, Tetsuhiro*; Takahata, Kazuya*; Hoshi, Ryo; Hamaguchi, Shinji*; Nunoya, Yoshihiko; Yoshida, Kiyoshi; Matsukawa, Makoto; Yanagi, Nagato*; Imagawa, Shinsaku*; Mito, Toshiyuki*

The maximum magnetic field and maximum current of EF coils for JT-60SA is 6.2T, 20 kA, respectively. The EF coil conductors are NbTi cable-in-conduit (CIC) conductor with SS316L conduit. In order to confirm the performance of current sharing temperature ($$T$$$$_{rm cs}$$) tests under coil operational condition was performed. As a results, the degradation of $$T$$$$_{rm cs}$$ was 0.01-0.08 K indicating that the conductor design and its fabrication method is appropriate. Experimental results were compared with the $$I$$ and $$T$$ by standard plasma operation scenario. It was confirmed that the conductor has $$T$$$$_{rm cs}$$ margin of $$>$$ 1K.



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Category:Nuclear Science & Technology



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