Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Shinsaku, IMAGAWA"'
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
https://doi.org/10.1109/tasc.2021.3064004
Publikováno v:
TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 55:357-365
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b297e7efa8157d48b31e3128b0606859
https://doi.org/10.2221/jcsj.55.357
https://doi.org/10.2221/jcsj.55.357
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
https://doi.org/10.2139/ssrn.4066439
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
http://hdl.handle.net/10655/00013466
Autor:
Shinsaku IMAGAWA, Hideki KAJITANI, Tetsuhiro OBANA, Suguru TAKADA, Shinji HAMAGUCHI, Hirotaka CHIKARAISHI, Yuta ONODERA, Kazuya TAKAHATA, Kunihiro MATSUI, Norikiyo KOIZUMI
Publikováno v:
Plasma and Fusion Research. 17:2405021-2405021
As a qualification test of ITER-TF coils, each joint sample was tested prior to manufacture of each TF coil. Eleven joint samples were tested by a conductor test facility with a 9 T split coil. The joint sample comprised two short TF conductors that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4af8920fd43679dfea256dfd1ae782a2
https://doi.org/10.1585/pfr.17.2405021
https://doi.org/10.1585/pfr.17.2405021
Autor:
Haruyuki Murakami, Kazuya Takahata, Suguru Takada, Hirotaka Chikaraishi, Shinji Hamaguchi, Tetsuhiro Obana, Kyohei Natsume, Kaname Kizu, Shinsaku Imagawa, Toshiyuki Mito, Akifumi Iwamoto
Publikováno v:
Tetsuhiro Obana, Kazuya Takahata, Shinji Hamaguchi, Hirotaka Chikaraishi, Suguru Takada, Akifumi Iwamoto, Shinsaku Imagawa, Toshiyuki Mito, Haruyuki Murakami, Kyohei Natsume, Kaname Kizu, Investigation of long time constants of magnetic fields generated by the JT-60SA CS1 module, Fusion Engineering and Design, Volume 137, 2018, Pages 274-282, ISSN 0920-3796, https://doi.org/10.1016/j.fusengdes.2018.10.005.
In a cold test of the JT-60SA CS1 module, which is composed of six octa-pancake coils and one quad-pancake coil wound with Nb3Sn CIC conductors, the measurement of self-magnetic fields generated by the CS1 module was conducted. As a result, the decay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fe4fb835d8826a444fb8df0b405276
http://hdl.handle.net/10655/00012958
http://hdl.handle.net/10655/00012958
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
https://doi.org/10.1109/tasc.2018.2810517
Autor:
S. Takami, Toshiyuki Mito, Akifumi Iwamoto, Shinsaku Imagawa, S. Moriuchi, K. Ooba, Kazuya Takahata
Publikováno v:
Cryogenics. 91:1-6
The Large Helical Device (LHD) superconducting magnet system consists of two pairs of helical coils and three pairs of poloidal coils. The poloidal coils use cable-in-conduit (CIC) conductors, which have now been adopted in many fusion devices, with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::119e37aa7168ed5caa5dc68448a8d622
https://doi.org/10.1016/j.cryogenics.2018.02.004
https://doi.org/10.1016/j.cryogenics.2018.02.004
Autor:
Minoru Nobutoki, Kouji Nadehara, Haruhiro Higaki, Suguru Takada, Kazuya Takahata, Akifumi Iwamoto, Shinsaku Imagawa, Toshiyuki Mito, Shinji Hamaguchi, Takuya Kumaki
Publikováno v:
Fusion Engineering and Design. 123:107-110
A 600 W helium refrigerator/liquefier with variable temperature supplies was constructed in the National Institute for Fusion Science (NIFS). The mass flow rate of supply Supercritical Helium (SHe) is important information for its performance tests a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb221d879499df6c0bdcba01dfa80394
https://doi.org/10.1016/j.fusengdes.2017.05.045
https://doi.org/10.1016/j.fusengdes.2017.05.045
Autor:
Y. Kimura, Nagato Yanagi, H. Yoshida, Shinichi Nomura, Hiroharu Kamada, M. Kudo, Hiroaki Tsutsui, Hirotaka Chikaraishi, Tsuyoshi Yagai, Shinsaku Imagawa, Taketsune Nakamura
Publikováno v:
IEEE Transactions on Applied Superconductivity. 26:1-5
High-temperature superconductor power applications are still expected to be the main players in reducing carbon footprints. In superconducting magnetic energy storage, increasing the stored energy also increases the electromagnetic force, which gener
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42632b16b8e81d7297b3ca85ceb1e28f
https://doi.org/10.1109/tasc.2016.2541670
https://doi.org/10.1109/tasc.2016.2541670