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Report No.

Preparation for ITER CS conductor fabrication

Hamada, Kazuya; Nunoya, Yoshihiko; Takahashi, Yoshikazu; Isono, Takaaki; Nabara, Yoshihiro; Hemmi, Tsutomu; Matsui, Kunihiro; Kawano, Katsumi; Ebisawa, Noboru; Oshikiri, Masayuki; Tsutsumi, Fumiaki; Uno, Yasuhiro; Saito, Toru*; Koizumi, Norikiyo; Nakajima, Hideo; Okuno, Kiyoshi; Miyatake, Takayuki*; Murakami, Yukinobu*

The ITER Central Solenoid (CS) conductor is composed of 576 Nb$$_{3}$$Sn superconducting strands and 288 Cu strands assembled together into a multistage cable and protected by a circle-in-square jacket with the outer dimension of 49 mm $$times$$ 49 mm. In R&D to prepare for the ITER CS conductor manufacturing, full size conductor performance test and jacket welding test and mechanical tests have been performed. In the presentation, the R&D activities are presented, showing that as a result of this R&D, the CS conductor manufacturing technologies have been confirmed to start the procurement of the CS conductor.



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