Results of All ITER TF Full-Size Joint Sample Tests in Japan

Autor: Kazumi Yoshizawa, Mio Nakamoto, Minoru Yamane, Norikiyo Koizumi, Hirotaka Chikaraishi, Shinsaku Imagawa, Shinji Hamaguchi, Tetsuhiro Obana, Hideki Kajitani, Kunihiro Matsui, Suguru Takada, Yasuhiro Uno, Masataka Nakahira

Publikováno v: H. Kajitani et al., "Results of All ITER TF Full-Size Joint Sample Tests in Japan," in IEEE Transactions on Applied Superconductivity, vol. 31, no. 5, pp. 1-5, Aug. 2021, Art no. 4201905, doi: 10.1109/TASC.2021.3064004.

Nine toroidal field (TF) coils have been developed in Japan for the international thermonuclear experimental reactor (ITER). The joint resistance of TF coil should satisfy the requirement of smaller than 3 nano-ohm at 2 T of external magnetic field a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07a8506d17633409933529da3e6e4f40
https://doi.org/10.1109/tasc.2021.3064004

Study on Irradiation Effect of Insulating Materials for Fusion Superconducting Magnets -Interlaminar Shear Strength at Liquid Helium Temperature

Autor: Yoko Akiyama, Nobuto Akazawa, Yuta Kunitoku, Yuichiro Manabe, Fuminobu Sato, Akifumi Iwamoto, Shinsaku Imagawa, Shigehiro Nishijima

Publikováno v: SSRN Electronic Journal.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18996576637a13d5fdd2511f854a93e8
https://doi.org/10.2139/ssrn.4066439

Design, Fabrication and Soundness Test of A Bi2223 Magnet Designed for Cooling by Liquid Hydrogen

Autor: Shinsaku Imagawa, Akifumi Iwamoto, Shinji Hamaguchi, Yasuyuki Shirai, Rikako Kawasaki, Hikaru Ohya, Fumiya Matsumoto, Masahiro Shiotsu, Makoto Tsuda, Yoh Nagasaki, Tsuyoshi Yagai, Hiroaki Kobayashi

Publikováno v: S. Imagawa et al., "Design, Fabrication and Soundness Test of A Bi2223 Magnet Designed for Cooling by Liquid Hydrogen," in IEEE Transactions on Applied Superconductivity, vol. 32, no. 6, pp. 1-5, Sept. 2022, Art no. 4604605, doi: 10.1109/TASC.2022.3172271.

The critical heat flux in liquid hydrogen is ten times higher than that in liquid helium and is approximately half of that in liquid nitrogen. Since the resistivity of pure metal such as copper or silver at 20 K is less than one-hundredth of that at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61520196bc56504293a5aac40f900534
http://hdl.handle.net/10655/00013466

Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation

Autor: Katsuhiro Nakamura, Akifumi Iwamoto, Nagato Yanagi, Kazuya Takahata, Shigeharu Kuwahara, Toshiya Nakashima, Koji Obara, Toshiyuki Mito, S. Moriuchi, Shinji Hamaguchi, Shinsaku Imagawa, K. Oba, Takuya Kumaki, Minoru Nobutoki, S. Takami, Hiroki Noguchi

Publikováno v: T. Mito et al., "Reexamination of Refrigeration Power of the LHD Cryogenic System After Fire and Restart of Operation," in IEEE Transactions on Applied Superconductivity, vol. 28, no. 4, pp. 1-4, June 2018, Art no. 4206004, doi: 10.1109/TASC.2018.2810517.

The Large Helical Device (LHD), built in the 1990s, is a heliotron-type fusion plasma experimental device with the world's first fully superconducting magnetic confinement system. The LHD cryogenic system operated stably for 18 years from 1998 to 201

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2df7ea51cda6a666f0642219c35657ee
https://doi.org/10.1109/tasc.2018.2810517

Conductor and joint test results of JT-60SA CS and EF coils using the NIFS test facility

Autor: Kiyoshi Yoshida, Kaname Kizu, Hiroki Noguchi, Tae-hyun Kim, Shinji Hamaguchi, Tetsuhiro Obana, Kyohei Natsume, T. Kobuchi, Kazuya Takahata, Kazuhiro Nomoto, Toshiyuki Mito, Hirotaka Chikaraishi, Katsuhiko Tsuchiya, Shinsaku Imagawa, S. Moriuchi, Haruyuki Murakami

Publikováno v: Tetsuhiro Obana, Kazuya Takahata, Shinji Hamaguchi, Kaname Kizu, Haruyuki Murakami, Hirotaka Chikaraishi, Hiroki Noguchi, Takashi Kobuchi, Sadatomo Moriuchi, Shinsaku Imagawa, Toshiyuki Mito, Katsuhiko Tsuchiya, Kyohei Natsume, Kiyoshi Yoshida, Kazuhiro Nomoto, Tae-hyun Kim, Conductor and joint test results of JT-60SA CS and EF coils using the NIFS test facility, Cryogenics, Volume 73, 2016, Pages 25-41, ISSN 0011-2275, https://doi.org/10.1016/j.cryogenics.2015.11.001.

In 2007, JAEA and NIFS launched the test project to evaluate the performance of cable-in-conduit (CIC) conductors and conductor joints for the JT-60SA CS and EF coils. In this project, conductor tests for four types of coil conductor and joint tests

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f531113c52a191ec7b8f09367620810
https://doi.org/10.1016/j.cryogenics.2015.11.001