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Report No.

Research activities on Tokamaks in Japan; JT-60U, JFT-2M and TRIAM-1M

Ninomiya, Hiromasa; Kitsunezaki, Akio; Shimizu, Masatsugu; Kuriyama, Masaaki; JT-60 Team; Kimura, Haruyuki; Kawashima, Hisato; Tsuzuki, Kazuhiro; Sato, Masayasu; Isei, Nobuaki; Miura, Yukitoshi; Hoshino, Katsumichi; Kamiya, Kensaku; Ogawa, Toshihide; Ogawa, Hiroaki; Miyachi, Kengo; JFT-2M Group; Ito, Satoshi*; Yoshida, Naoaki*; Hanada, Kazuaki*; Nakamura, Kazuo*; Zushi, Hideki*; Sakamoto, Mizuki*; Jotaki, Eriko*; Hasegawa, Makoto*; TRIAM Group

In order to establish scientific basis for the sustainment of highly integrated performance required in the advanced steady-state operation, JT-60U has been optimizing the discharge control scenarios of improved confinement plasmas and expanding the operation regions. Promising results toward the steady-state tokamak were obtained. The detail of such results is reported. JFT-2M has performed advanced and basic research for the development of high performance tokamak plasma as well as the structural material for a fusion reactor. The toroidal ripple reduction with ferritic steel plates outside the vacuum vessel was successfully demonstrated. No adverse effects were observed in the pre-testing on compatibility between ferritic steel plates, covering ~20% of the inside wall of the vacuum vessel, and plasma. The results of TRIAM-1M is also reported.



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Category:Nuclear Science & Technology



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