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Al strandNabara, Yoshihiro; Nunoya, Yoshihiko; Matsui, Kunihiro; Hemmi, Tsutomu; Koizumi, Norikiyo; Isono, Takaaki; Uno, Yasuhiro*; Okui, Yoshio*; Oshikiri, Masayuki; Seo, Kazutaka; et al.
no journal, ,
no abstracts in English
Tsuchiya, Katsuhiko; Edaya, Masahiro*; Kizu, Kaname; Yoshida, Kiyoshi; Matsukawa, Makoto
no journal, ,
no abstracts in English
Kizu, Kaname; Tsuchiya, Katsuhiko; Hoshi, Ryo; Yoshida, Kiyoshi; Matsukawa, Makoto; Obana, Tetsuhiro*; Takahata, Kazuya*; Hamaguchi, Shinji*; Yanagi, Nagato*; Imagawa, Shinsaku*; et al.
no journal, ,
The maximum magnetic field and maximum current of EF coils for JT-60SA is 6.2 T, 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 (Tcs) tests under coil operational condition was performed. As a results, the degradation of Tcs was 0.02-0.07 K indicating that the conductor design and its fabrication method is appropriate.
Komeda, Masao*; Tsuchiya, Katsuhiko; Kizu, Kaname; Yoshida, Kiyoshi; Matsukawa, Makoto
no journal, ,
no abstracts in English
Takahashi, Yoshikazu; Nakajima, Hideo; Isono, Takaaki; Koizumi, Norikiyo; Hamada, Kazuya; Nunoya, Yoshihiko; Matsui, Kunihiro; Nabara, Yoshihiro; Hemmi, Tsutomu; Oshikiri, Masayuki; et al.
no journal, ,
In the ITER project, the ITER Organization formally entered into force, on 24 October 2007. At the same time, Japanese government has designated the Japan Atomic Energy Agency (JAEA) as the Japanese Domestic Agency. The first Procurement Arrangement for the superconductors for TF coils has been signed between the ITER Organization and the JAEA, on 28 November 2007. According to the Procurement Arrangement, the contracts for the superconductors have been made between JAEA and Japanese manufacturers, in March 2008. The fabrication of the superconductors was launched. The recent progress in the superconducting coil system of the ITER is reported.
Isono, Takaaki; Matsui, Kunihiro; Okui, Yoshio*; Seo, Kazutaka; Koizumi, Norikiyo; Takahashi, Yoshikazu; Okuno, Kiyoshi
no journal, ,
ITER TF conductors will be procured by 6 parties, which are Japan, EU, Korea, Russia, US and China. Japan will procure 25% (4.75 coils) of the TF conductors. 100 tons of Nb
Sn strands will be procured by JA for the TF conductors and total length of the conductor shall be 22 km. ITER organization and JAEA have signed agreement to procure the TF conductor last November. JAEA separated the procurement into three categories, which are strand, cable and conductor procurements. Before the procurement, JAEA has evaluated performance of 4 kinds of full size conductors, each of which uses NbSn strands fabricated by respective Japanese company. Test results of 2 kinds of conductors were presented last year. This time, test results of other conductors will be presented.
Hemmi, Tsutomu; Koizumi, Norikiyo; Matsui, Kunihiro; Hamada, Kazuya; Takahashi, Yoshikazu; Nakajima, Hideo; Okuno, Kiyoshi; Kuno, Kazuo*; Nomoto, Kazuhiro*; Sakai, Masahiro*; et al.
no journal, ,
Japan Atomic Energy Agency starts the procurement of ITER-TF coils from this year. ITER-TF coils are three times larger than TF model coil (TFMC), which is developed in ITER-EDA. From result of development of TFMC, the basic fabrication technique has been demonstrated. However, new technical issue has generated due to the scale-up from TFMC. In order to solve the issue, high accurate D-shaped winding technique, impregnation test using high radiation-resistant resin and cover-plate welding and deformation evaluation have been performed. In this presentation, these results of the fabrications and the tests are reported.
Nunoya, Yoshihiko; Takahashi, Yoshikazu; Isono, Takaaki; Oshikiri, Masayuki; Kawano, Katsumi; Koizumi, Norikiyo; Hamada, Kazuya; Matsui, Kunihiro; Nabara, Yoshihiro; Hemmi, Tsutomu; et al.
no journal, ,
no abstracts in English