Search Results - "Koizumi, Norikiyo"

Results of ITER TF Coil Double Pancake Heat Treatment in Japan by Kajitani, Hideki, Nakamoto, Mio, Yoshizawa, Kazumi, Uno, Yasuhiro, Kawasaki, Tsutomu, Matsui, Kunihiro, Koizumi, Norikiyo, Nakahira, Masataka

“…In Japan, 9 ITER TF coils were manufactured for the ITER project. Each TF coil consists of seven Nb 3 Sn conductor double pancakes (DPs). In DP manufacturing,…”
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Fabrication and Characterization of (Ba,Na)Fe2As2 Wires and Tapes by Tamegai, Tsuyoshi, Miyawaki, Daisuke, Pyon, Sunseng, Wu, Wenxi, Kajitani, Hideki, Koizumi, Norikiyo, Awaji, Satoshi

“…In order to enhance J c in (Ba,Na)Fe 2 As 2 wires and tapes further by improving texturing, we examined the following approaches; (1) Ag-sheathed HIP tapes,…”
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Fabrications and evaluations of critical current density of (Ba,Na)Fe2As2 HIP round wires by Miyawaki, Daisuke, Pyon, Sunseng, Suwa, Takahiro, Takano, Katsutoshi, Kajitani, Hideki, Koizumi, Norikiyo, Awaji, Satoshi, Tamegai, Tsuyoshi

“…•Ba0.6Na0.4Fe2As2 round wires were fabricated using powder-in-tube (PIT) method and hot isostatic pressing (HIP).•Transport jc at 4.2 K of the wire reached…”
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New Inspection Method of Soldering Region at Room Temperature for ITER TF Termination by Kajitani, Hideki, Nakamoto, Mio, Kasai, Yuma, Yamane, Minoru, Matsui, Kunihiro, Koizumi, Norikiyo

“…For inter-double-pancake joints of ITER TF it is required to achieve sufficiently low joint resistance (R J ), as 3 nΩ, to reduce Joule heating during…”
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Progress of ITER TF Coil Fabrication in Japan by Koizumi, Norikiyo, Nakahira, Masataka, Nakamoto, Mio, Iguchi, Masahide, Kajitani, Hideki, Masaki, Kei, Matsui, Kunihiro, Sakurai, Takeru, Takano, Katsutoshi, Ando, Shinji

“…QST, as Japan Domestic Agency in ITER, has responsibility to procure 9 ITER Toroidal Field (TF) coils and all 19 TF Coil Cases (CC). The 9 TF coils are…”
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Results of All ITER TF Full-Size Joint Sample Tests in Japan by Kajitani, Hideki, Imagawa, Shinsaku, Obana, Tetsuhiro, Takada, Suguru, Hamaguchi, Shinji, Chikaraishi, Hirotaka, Nakamoto, Mio, Yamane, Minoru, Yoshizawa, Kazumi, Uno, Yasuhiro, Matsui, Kunihiro, Koizumi, Norikiyo, Nakahira, Masataka

“…Nine toroidal field (TF) coils have been developed in Japan for the international thermonuclear experimental reactor (ITER). The joint resistance of TF coil…”
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Demonstration of Excellent Jc Performance in (AE,Na)Fe2As2 (AE: Sr, Ba) PIT Wires by Tamegai, Tsuyoshi, Suwa, Takahiro, Miyawaki, Daisuke, Pyon, Sunseng, Takano, Katsutoshi, Kajitani, Hideki, Koizumi, Norikiyo, Awaji, Satoshi

“…Na-substituted 122-type iron-based superconductors were synthesized and fabricated into superconducting tapes and wires. Good Jc performance of Ag-sheathed Sr…”
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New Inspection Method of Termination Resistance at Room Temperature for ITER TF Coil by Kajitani, Hideki, Hemmi, Tsutomu, Uno, Yasuhiro, Shimizu, Tatsuya, Yamane, Minoru, Nakamoto, Mio, Matsui, Kunihiro, Koizumi, Norikiyo

“…It is important to achieve sufficiently low joint resistance (RJ), as 3 nQ with a background field of 2 T and nominal current of 68 kA to reduce the loss by…”
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Development of ITER TF Coil Winding Pack (WP) and Qualification for Assembling WP and Coil Case in Japan by Koizumi, Norikiyo, Nakamoto, Mio, Nakahira, Masataka, Masaki, Kei, Matsui, Kunihiro, Iguchi, Masahide, Kajitani, Hideki, Ozeki, Hidemasa, Sakurai, Takeru, Takano, Katsutoshi, Ando, Shinji

“…QST, as Japan Domestic Agency in ITER, has responsibility to procure nine ITER toroidal field (TF) coils and all 19 TF coil cases (CC). The nine TF coils are…”
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Progress of ITER TF Coil Case Fabrication in Japan by Iguchi, Masahide, Sakurai, Takeru, Hemmi, Tsutomu, Fujiwara, Eikou, Ino, Masanobu, Nishino, Masao, Tanaka, Nobuhiko, Kanamori, Shino, Kurita, Tomohisa, Hanaoka, Toshiaki, Yunseok Hong, Tsutsumi, Fumiaki, Nakahira, Masataka, Koizumi, Norikiyo

“…National Institutes for Quantum and Radiological Science and Technology (QST), which has been Japan Atomic Energy Agency up to March 2016, as Japan Domestic…”
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Evaluation of Bending Strain in Nb3Sn Strands of CIC Conductor Using Neutron Diffraction by Hemmi, Tsutomu, Harjo, Stefanus, Kajitani, Hideki, Suwa, Tomone, Saito, Toru, Aizawa, Kazuya, Osamura, Kozo, Koizumi, Norikiyo

“…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…”
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Effects of high-pressure annealing on critical current density in 1 2 2 type iron pnictide wires by Pyon, Sunseng, Tsuchiya, Yuji, Inoue, Hiroshi, Koizumi, Norikiyo, Kajitani, Hideki, Tamegai, Tsuyoshi

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Effects of high-pressure sintering on critical current density in Co-doped BaFe2As2 wires by INOUE, Hiroshi, TSUCHIYA, Yuji, TADA, Shinya, PYON, Sunseng, KAJITANI, Hideki, KOIZUMI, Norikiyo, TAMEGAI, Tsuyoshi

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Fabrication of an Insert to Measure Performance of ITER CS Conductor by Isono, Takaaki, Kawano, Katsumi, Ozeki, Hidemasa, Kajitani, Hideki, Koizumi, Norikiyo, Okuno, Kiyoshi, Minato, Tsuneaki, Nishimiya, Hikaru, Watabe, Yuki, Sakamoto, Hiroo, Sasaki, Takashi, Smirnov, Alexander, Martovetsky, Nicolai N.

“…The Japan Atomic Energy Agency (JAEA) and Mitsubishi Electric Corporation are fabricating the insert coil needed to evaluate the performance of final design…”
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Evaluation of ITER TF Coil Joint Performance by Kajitani, Hideki, Hemmi, Tsutomu, Mizutani, Takumi, Matsui, Kunihiro, Yamane, Minoru, Obana, Tetsuhiro, Takada, Suguru, Hamaguchi, Shinji, Takahata, Kazuya, Imagawa, Shinsaku, Koizumi, Norikiyo

“…To evaluate the ITER TF joint performance, the joint test sample, which consists of two short TF conductors and has full size joint, shall be tested using NIFS…”
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Influence of Twist Pitch in CICC on Contact Condition Between Individual Superconducting Strands and a Copper Sleeve in a Lap Joint by Miyagi, Daisuke, Morimura, Toshiya, Watanabe, Kazuaki, Tsuda, Makoto, Hamajima, Takataro, Kajitani, Hideki, Nunoya, Yoshihiko, Koizumi, Norikiyo, Takahata, Kazuya

“…One of the reasons for degradation of the critical current in a Cable-in-conduit conductor is unbalanced current distribution due to inhomogeneous resistance…”
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Performance Analysis of Mass-Produced Nb3Sn Conductor for Central Solenoid in ITER by Nabara, Yoshihiro, Suwa, Tomone, Ozeki, Hidemasa, Kajitani, Hideki, Sakurai, Takeru, Hemmi, Tsutomu, Iguchi, Masahide, Nunoya, Yoshihiko, Takahashi, Yoshikazu, Isono, Takaaki, Matsui, Kunihiro, Koizumi, Norikiyo, Tsutsumi, Fumiaki, Uno, Yasuhiro, Oshikiri, Masayuki, Shibutani, Kazuyuki, Okuno, Kiyoshi, Murakami, Yukinobu, Takano, Tsuyoshi, Sedlak, Kamil, Stepanov, Boris, Bruzzone, Pierluigi

“…The performance of two mass-produced Nb 3 Sn conductors for the ITER central solenoids was tested for the first time. One was cut from the forward end of an…”
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Study on Resistance Distribution Between Superconducting Strand and a Copper Sleeve in a CICC Joint Considering Three-Dimensional Strand Path by Morimura, Toshiya, Miyagi, Daisuke, Tsuda, Makoto, Hamajima, Takataro, Yagai, Tsuyoshi, Nunoya, Yoshihiko, Koizumi, Norikiyo, Takahata, Kazuya, Obana, Tetsuhiro

“…A Cable-in-Conduit-Conductor (CICC) is a composite conductor consisting of many superconducting strands twisted in multiple steps. The CICC has the…”
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Analysis of current and voltage distribution in the first Japanese qualification sample of an ITER TF conductor by Koizumi, Norikiyo, Matsui, Kunihiro, Okuno, Kiyoshi

“…The critical currents of the Japanese ITER TF conductors made through an internal-tin and bronze process were preliminarily estimated to be about 5.7 K, which…”
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Neutron irradiation effects on superconducting wires and insulating materials by Nishimura, Arata, Takeuchi, Takao, Nishijima, Shigehiro, Nishijima, Gen, Shikama, Tatsuo, Ochiai, Kentaro, Koizumi, Norikiyo

“…On the progress of the Deuterium–Deuterium (D–D) or Deuterium–Tritium (D–T) burning plasma devices, the importance of neutron irradiation on superconducting…”
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