Kazuya Takahata
The Furukawa Electric Co., Ltd.
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Archive | 1999
N. Yanagi; Andrew V. Gavrilin; Toshiyuki Mito; S. Imagawa; Kazuya Takahata; A. Iwamoto; Hirotaka Chikaraishi; Satarou Yamaguchi; T. Satow; Sadao Satoh; Osamu Motojima
Stability tests have been carried out on the aluminum stabilized composite-type superconductors developed and used for the pool-cooled helical coils of the Large Helical Device (LHD). The longitudinal voltage of a normal zone shows a short-time rise before reaching a final value, which seems to be explained by the rather slow diffusion process of transport current into the pure aluminum stabilizer and the copper housing. The propagation velocity has a finite value even below the recovery current, and it differs depending on the direction of transport current. A numerical analysis dealing with transient thermal and electromagnetic relaxation processes in the aluminum stabilizer well explains the experimentally observed results.
Annual Report of National Institute for Fusion Science | 2016
T. "Obana; Kazuya Takahata; M Tokitani; K. Kizu; H. Murakami
Annual Report of National Institute for Fusion Science | 2016
Kazuya Takahata; Sadatomo Moriuchi; K Ooba; S Takami; A. Iwamoto; T. Mito; S. Imagawa
Annual Report of National Institute for Fusion Science | 2016
H. Tamura; N. Yanagi; Kazuya Takahata; A. Sagara; S. Ito; H. Hashizume
Annual Report of National Institute for Fusion Science | 2016
T. Mito; A. Iwamoto; S. Hamaguchi; S. Imagawa; Kazuya Takahata; N. Yanagi; H Chikaraishi; Sadatomo Moriuchi; K Ooba; S Takami
Annual Report of National Institute for Fusion Science | 2015
Takashi Mito; Kazuya Takahata; T. Satow; Shinji Satoh; A. Yamada Nishimura; N. Yanagi; A. Iwamoto; O. Motojima; J. Yamamoto
Annual Report of National Institute for Fusion Science | 2015
Kazuya Takahata; A. Iwamoto; T. Morisaki; J. Yamamoto; O. Motojima
Annual Report of National Institute for Fusion Science | 2015
A. Iwamoto; Takashi Mito; Kazuya Takahata; N. Yanagi; J. Yamamoto
Annual Report of National Institute for Fusion Science | 2015
Kazuya Takahata; H. Tamura; T. Mito; S. Imagawa; A. Sagara
Annual Report of National Institute for Fusion Science | 2015
T. "Obana; Kazuya Takahata; S. Hamaguchi; H. Chikaraishi; T. Mito; S. Imagawa; K. Kizu; H. Murakami; K." Yoshida
