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Hiratsuka, Hajime; Hatano, Toshihisa; Abe, Tetsuya
Heisei-24-Nendo Kyoto Daigaku Sogo Gijutsu Kenkyukai Hokokusho (CD-ROM), 3 Pages, 2013/03
no abstracts in English
Kaminaga, Atsushi; Matsunaga, Go; Masaki, Kei; Sakasai, Akira
Heisei-24-Nendo Kyoto Daigaku Sogo Gijutsu Kenkyukai Hokokusho (CD-ROM), 4 Pages, 2013/03
no abstracts in English
Terakado, Masayuki; Sawahata, Masayuki; Hiranai, Shinichi; Kobayashi, Takayuki; Hinata, Jun; Wada, Kenji; Sato, Yoshikatsu; Yokokura, Kenji; Hoshino, Katsumichi; Moriyama, Shinichi; et al.
no journal, ,
In the JT-60SA tokamak under construction for nuclear fusion experiments, the electron cyclotron heating (ECH) is expected. The oscillation output of gyrotron in the ECH system in JT-60 was 1 MW for 5 s, but for the new system in JT-60SA, 1 MW for 100 s is the development target. In addition, development toward 1.5 MW output is going on in parallel. In these developments, it is important to reduce a heat load by the electron beam toward the collector of the gyrotron. Because time constant of the temperature rise of the collector is around 10 s, heat load may become a serious problem for a longer pulse than 5 s. Higher power output will also increase the heat load. Localization of the heat load toward the collector is essentially prevented by changing a magnetic field by sweeping coils installed outside the collector. This time, the temperature distribution on the collector was examined by changing the sweep-wave-pattern for the sweeping coil to obtain more uniform heat load.
Sasaki, Shunichi; Endo, Yasuei; Terunuma, Yuto; Hanada, Masaya; Kojima, Atsushi
no journal, ,
no abstracts in English
Mogaki, Kazuhiko; Hanada, Masaya; Akino, Noboru; Kojima, Atsushi; Yoshida, Masafumi
no journal, ,
no abstracts in English