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Nakajima, Hideo; Hamada, Kazuya; Takano, Katsutoshi; Okuno, Kiyoshi; Kakui, Hideo*; Yamaoka, Hiroto*; Nakamura, Taizo*; Yamana, Norihiko*
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no abstracts in English
Takano, Katsutoshi; Nakajima, Hideo; Hamada, Kazuya; Kawano, Katsumi; Tsutsumi, Fumiaki; Okuno, Kiyoshi
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Niimi, Kenichiro; Nakajima, Hideo; Hamada, Kazuya; Takano, Katsutoshi; Okuno, Kiyoshi; Kakui, Hideo*; Yamaoka, Hiroto*; Chida, Yutaka*; Seto, Masaru*; Soejima, Koji*; et al.
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Takahashi, Yoshikazu; Isono, Takaaki; Koizumi, Norikiyo; Matsui, Kunihiro; Hamada, Kazuya; Nunoya, Yoshihiko; Nabara, Yoshihiro; Oshikiri, Masayuki; Nakajima, Hideo; Kawano, Katsumi; et al.
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The toroidal field (TF) coil system of the International Thermonuclear Experimental Reactor (ITER) consists of 18 D-shape coils. The operating current, the maximum field and the stored magnetic energy are 68 kA, 11.8 T and about 41 GJ, respectively. Nb
Sn cable-in-conduit conductor (CICC) with a central channel is used. The superconducting cable consists of 900 NbSn strands and 522 copper strands, and they are cabled to a 5 stage cable with the final 6 fifth-stage subunits cabled around a central cooling spiral. Five long conductors with a length of 760 m and 2 short conductors with a length of 520 m are used for one coil. Ninety-five long conductors and 38 short conductors will be fabricated for the TF coil system including one spare coil. Japan will procure 25% of these TF conductors. Mass production trial of high Jc strands was successfully completed in 4 companies in Japan. The superconducting performance of full-size conductors manufactured in the mass production trial will be tested at the operating condition in May 2007. We will start the procurement of the conductors after the superconducting performance of these conductors is confirmed in the test.
Matsui, Kunihiro; Koizumi, Norikiyo; Isono, Takaaki; Nunoya, Yoshihiko; Nabara, Yoshihiro; Takahashi, Yoshikazu; Okuno, Kiyoshi
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no abstracts in English
Yoshida, Kiyoshi; Tsuchiya, Katsuhiko; Kizu, Kaname
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Japanese government (JA) and European commission (EU) are establishing so-called "Broader Approach Program" toward early realization of fusion energy based on tokamak concept. JT-60U modification program to a superconducting device can be a strong satellite tokamak program in the BA with a new device name "JT-60SA (JT-60 Super Advanced)". The design concepts and rules of JT-60SA superconducting coils are followed to these in the ITER project. Parties in JA and in EU can use the common design concepts and rules these have been developed during the Engineering Design Activity (EDA) in the ITER. It is possible to avoid many developments to design the superconducting coils in JT-60SA. This paper descries the requirements and the operational interface of the JT-60SA.
Nabara, Yoshihiro; Nunoya, Yoshihiko; Matsui, Kunihiro; Koizumi, Norikiyo; Isono, Takaaki; Uno, Yasuhiro*; Seki, Shuichi*; Oshikiri, Masayuki; Takahashi, Yoshikazu
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no abstracts in English
Tsuchiya, Katsuhiko; Suzuki, Yutaka; Kizu, Kaname; Yoshida, Kiyoshi; Tamai, Hiroshi; Matsukawa, Makoto
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Kizu, Kaname; Tsuchiya, Katsuhiko; Yoshida, Kiyoshi; Edaya, Masahiro; Tamai, Hiroshi; Matsukawa, Makoto
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Tatsumoto, Hideki; Aso, Tomokazu; Otsu, Kiichi; Hasegawa, Shoichi; Uehara, Toshiaki; Kato, Takashi
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Aso, Tomokazu; Tatsumoto, Hideki; Hasegawa, Shoichi; Otsu, Kiichi; Uehara, Toshiaki; Maekawa, Fujio; Kato, Takashi
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Machiya, Shutaro; Osamura, Kozo*; Suzuki, Hiroshi; Ayai, Naoki*; Kato, Takeshi*; Hayashi, Kazuhiko*; Sato, Kenichi*
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Koizumi, Norikiyo; Matsui, Kunihiro; Nakajima, Hideo; Hamada, Kazuya; Isono, Takaaki; Okuno, Kiyoshi; Takayanagi, Tadatoshi*
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Takayanagi, Tadatoshi*; Kuno, Kazuo*; Ichihara, Tadashi*; Nomoto, Kazuhiro*; Hasegawa, Mitsuru*; Koizumi, Norikiyo; Matsui, Kunihiro; Okuno, Kiyoshi
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no abstracts in English