Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Tsutomu Hemmi"'
Autor:
Hideki Kajitani, Tsutomu Hemmi, Masahide Iguchi, Takeru Sakurai, Katsutoshi Takano, Fumiaki Tsutsumi, Kengo Saito, Kazuyuki Sakamoto, Nobuhiko Tanaka, Masataka Nakahira, Takaaki Isono
Publikováno v:
Nuclear Fusion, Vol 64, Iss 9, p 096026 (2024)
All 19 ITER toroidal field coil structures (TFCSs) were successfully fabricated by the Japan Domestic Agency with solving technical challenges. This study presents the results of the welding-deformation control process, which is a remarkable challeng
Externí odkaz:
https://doaj.org/article/1a56586e4d854b4a94a7c5ed2e4161c8
Autor:
Tsutomu Hemmi, Shino Kanamori, Fumiaki Tsutsumi, Eikou Fujiwara, Masataka Nakahira, Nobuhiko Tanaka, Takeru Sakurai, Toshiaki Hanaoka, Masao Nishino, Yunseok Hong, Masahide Iguchi, Tomohisa Kurita, Masanobu Ino, Norikiyo Koizumi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-6
National Institutes for Quantum and Radiological Science and Technology (QST), which has been Japan Atomic Energy Agency up to March 2016, as Japan Domestic Agency, has responsibility to procure 19 coil cases for ITER toroidal field coils (TFCs) as i
Autor:
Minoru Yamane, Tsutomu Hemmi, Kunihiro Matsui, Kaori Sakaguchi, Mio Nakamoto, Hideki Kajitani, Norikiyo Koizumi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-4
Quantum and Radiological Science and Technology (QST), a Japan Domestic Agency in ITER, is responsible for procuring nine ITER Toroidal Field coils. QST developed an optimized manufacturing plan to solve technical issues in double-pancake (DP) fabric
Autor:
Tatsuya Shimizu, Hideki Kajitani, Yasuhiro Uno, Minoru Yamane, Tsutomu Hemmi, Kunihiro Matsui, Mio Nakamoto, Norikiyo Koizumi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-5
It is important to achieve sufficiently low joint resistance ( ${\rm{R}}_{{\rm{J}}}$ ), as 3 nΩ with a background field of 2 T and nominal current of 68 kA to reduce the loss by Joule heating during operation, for interdouble-pancake joints of ITER
Autor:
Hidemasa Ozeki, Florent Gauthier, Yoshikazu Takahashi, Denis Bessette, Tsutomu Hemmi, Nicolai Martovetsky, Arnaud Devred, Norikiyo Koizumi, Tomone Suwa, Takaaki Isono, Katsumi Kawano, Marco Breschi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-5
Quantum and radiological science and technology performed a toroidal field (TF) insert coil (TFIC) test in 2016–2017, which was newly developed in 2014 with the ITER TF conductor, in the central solenoid model coil test facility. According to the t
Autor:
Tomone Suwa, Yoshikazu Takahashi, Koizumi Norikiyo, Toru Saito, Stefanus Harjo, Tsutomu Hemmi, Vladimir Luzin, Hiroshi Suzuki
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-4
Nb3Sn strands, whose properties are very sensitive to stress/strain, are utilized for ITER cable-in-conduit conductor (CICC) of the central solenoids. The Nb3Sn strands experience temperature range of ∼1000 K from the temperature of the heat treatm
Autor:
Tsutomu Hemmi, M. Nakamoto, Kunihiro Matsui, Minoru Yamane, Norikiyo Koizumi, K. Takano, Hideki Kajitani, Shinji Ando
Publikováno v:
Fusion Engineering and Design. 124:99-103
National Institutes for Quantum and Radiological Science and Technology, (QST), as Japan Domestic Agency, has responsibility to procure 9 ITER Toroidal Field (TF) coils. QST completed proto double-pancake (DP) trials aiming at qualification and optim
Autor:
Tomone Suwa, Hideki Kajitani, Kozo Osamura, Stefanus Harjo, Toru Saito, Tsutomu Hemmi, Norikiyo Koizumi, Kazuya Aizawa
Publikováno v:
IEEE Transactions on Applied Superconductivity. 27:1-5
The superconducting property of Nb 3 Sn strands is very sensitive to strain. The transverse electromagnetic loading has been considered as a major origin of the degradation of Nb 3 Sn cable-in-conduit conductors (CICCs) due to the local bending. Sinc
Autor:
Takumi Mizutani, Minoru Yamane, Hideki Kajitani, Nobuhiko Tanaka, Masataka Nakahira, Toshiaki Hanaoka, Eikou Fujiwara, Se-sub Hwang, Toru Saito, Tsutomu Hemmi, Shinji Ando, Kunihiro Matsui, Kaori Sakaguchi, T. Nakano, Masahide Iguchi, Mio Nakamoto, Takeru Sakurai, Katsutoshi Takano, Norikiyo Koizumi
Publikováno v:
IEEE Transactions on Applied Superconductivity. 27:1-5
Full-scale trials were performed to qualify and optimize the manufacturing procedure of the toroidal field (TF) coil prior to the series production. In the full-scale trials, winding, reaction heat-treatment, conductor transfer, insulation, and cover
Autor:
Shinji Ando, Kunihiro Matsui, Hideki Kajitani, Norikiyo Koizumi, K. Takano, Takumi Mizutani, Minoru Yamane, Tsutomu Hemmi, T. Nakano
Publikováno v:
Fusion Engineering and Design. :574-580
JAEA performed full-scale trials to qualify and optimize manufacturing procedure of TF coil fabrication prior to series production. In the full-scale trials, conductor winding, heat treatment, conductor transfer, conductor insulation and cover plate