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Kusama, Yoshinori
Purazuma Shindan No Kiso To Oyo, p.195 - 205, 2006/03
no abstracts in English
Shinohara, Koji; Sato, Masayasu; Kawashima, Hisato; Tsuzuki, Kazuhiro; Suzuki, Sadaaki; Urata, Kazuhiro*; Isei, Nobuaki; Tani, Takashi; Kikuchi, Kazuo; Shibata, Takatoshi; et al.
Fusion Science and Technology, 49(2), p.187 - 196, 2006/02
Times Cited Count：7 Percentile：46.04(Nuclear Science & Technology)In JFT-2M, the toroidal field ripple was reduced by ferritic insert. Two kinds of ripple reduction were carried out. In the first case, ferritic steel was installed between toroidal field coil and vacuum vessel, just under toroidal field coil, outside vacuum vessel. In the second one, ferritic steel was installed inside vacuum vessel covering almost whole inside wall. The ripple was successfully reduced in the both cases. The temperature increment on the first wall measured by infrared TV was also reduced. A new version of OFMC code was also developed to analyze fast ion behavior in the complex structure of the toroidal field. The TF ripple reduction with ferritic insert in JFT-2M is summarized in this article.
Okano, Kunihiko*; Suzuki, Takahiro; Umeda, Naotaka; Hiwatari, Ryoji*; Masaki, Kei; Tobita, Kenji; Fujita, Takaaki
Purazuma, Kaku Yugo Gakkai-Shi, 81(8), p.579 - 580, 2005/08
In a toroidal system, circulating fast ions generated by neutral beam injection affect the beam stopping cross-section of the neutral beam itself. This effect is called "beam particle self-interaction (BPSI)". In a recent experiment in JT-60U with 350 keV H
beam, an indication of this BPSI effect has been found for the first time. In a low density discharge at about 1
10
m
, the beam shine-through decreased by about 35% within several hundred msec after beam injection. This result is consistent with a prediction by the BPSI theory.
Shinohara, Koji; Kawashima, Hisato; Tsuzuki, Kazuhiro; Urata, Kazuhiro*; Sato, Masayasu; Ogawa, Hiroaki; Kamiya, Kensaku; Sasao, Hajime; Kimura, Haruyuki; Kasai, Satoshi; et al.
Nuclear Fusion, 43(7), p.586 - 593, 2003/07
Times Cited Count：49 Percentile：80.18(Physics, Fluids & Plasmas)In JFT-2M, the ferritic steel was installed inside the vacuum vessel as the third step of tne Advanced Material Tokamak Experiment (AMTEX) programme. The magnetic field structure has become the complex ripple strucuture such as non-periodic ripple structure in the toroidal direction and high Fourier-number ripple because of the existence of the port and the limitation of the periodic installation. Under such a complex ripple structure, we have performed the experiment to understand its effect on fast ions. To actively change the ripple structure, we have installed the additional ferritic steel plates (FPs). We also have compared the experiment result with the newly updated OFMC code which does not need the toroidal 16-folded symmetry. The experiment results were almost consistent with the OFMC calcution with the complex magnetic field and the complex first wall.
Mironov, M. I.*; Khudoleev, A. V.*; Kusama, Yoshinori
Proceedings of 30th EPS Conference on Controlled Fusion and Plasma Physics (CD-ROM), 4 Pages, 2003/07
no abstracts in English
n eigenmodes and fast ionloss in tokamak plasmasKusama, Yoshinori; Ozeki, Takahisa
Nihon Butsuri Gakkai-Shi, 56(4), p.262 - 266, 2001/04
no abstracts in English
Kawashima, Hisato; Tsuzuki, Kazuhiro; Tani, Takashi; Sato, Masayasu; Kimura, Haruyuki; JFT-2M Group
Review of Scientific Instruments, 72(1), P. 919, 2001/01
no abstracts in English
Kawashima, Hisato; Tsuzuki, Kazuhiro; Isei, Nobuaki; Sato, Masayasu; Shinohara, Koji; Kimura, Haruyuki
Europhysics Conference Abstracts (CD-ROM), 25A, p.1337 - 1340, 2001/00
no abstracts in English
Kramer, G. J.; Iwase, Makoto; Kusama, Yoshinori; Morioka, Atsuhiko; Nemoto, Masahiro; Nishitani, Takeo; Shinohara, Koji; Takeji, Satoru; Tobita, Kenji; Ozeki, Takahisa; et al.
Nuclear Fusion, 40(7), p.1383 - 1396, 2000/07
Times Cited Count：46 Percentile：77.78(Physics, Fluids & Plasmas)no abstracts in English
Kimura, Haruyuki; Kawashima, Hisato; Tsuzuki, Kazuhiro; Sato, Masayasu; Miura, Yukitoshi; Isei, Nobuaki; Ido, Takeshi*; Ogawa, Toshihide; Uehara, Kazuya; JFT-2M Group
JAERI-Conf 2000-004, p.77 - 80, 2000/03
no abstracts in English
Tsuzuki, Kazuhiro; Sato, Masayasu; Kawashima, Hisato; Miura, Yukitoshi; Kimura, Haruyuki; Abe, Tetsuya; Uehara, Kazuya; Ogawa, Toshihide; Akiyama, Takashi*; Shibata, Takatoshi; et al.
Journal of Nuclear Materials, 283-287, p.681 - 684, 2000/00
Times Cited Count：12 Percentile：62.16(Materials Science, Multidisciplinary)no abstracts in English
n eigenmodes and their coupling to global Alfvn eigenmodesKramer, G. J.; Cheng, C. Z.*; Fu, G. Y.*; Kusama, Yoshinori; Nazikian, R. M.*; Ozeki, Takahisa; Tobita, Kenji
Physical Review Letters, 83(15), p.2961 - 2964, 1999/10
Times Cited Count：24 Percentile：75.07(Physics, Multidisciplinary)no abstracts in English
Tobita, Kenji; JT-60 Team
Plasma Physics and Controlled Fusion, 41(SUPPL.3A), p.A333 - A343, 1999/00
Times Cited Count：28 Percentile：65.21(Physics, Fluids & Plasmas)no abstracts in English
Kimura, Haruyuki; Kusama, Yoshinori; Saigusa, Mikio*; Kramer, G. J.*; Tobita, Kenji; Nemoto, Masahiro; Kondoh, Takashi; Nishitani, Takeo; O.DaCosta*; Ozeki, Takahisa; et al.
Nuclear Fusion, 38(9), p.1303 - 1314, 1998/09
Times Cited Count：126 Percentile：95.17(Physics, Fluids & Plasmas)no abstracts in English
Kramer, G. J.*; Saigusa, Mikio; Ozeki, Takahisa; Kusama, Yoshinori; Kimura, Haruyuki; Oikawa, Toshihiro; G.Y.Fu*; C.Z.Cheng*; Tobita, Kenji
Physical Review Letters, 80(12), p.2594 - 2597, 1998/03
Times Cited Count：45 Percentile：83.75(Physics, Multidisciplinary)no abstracts in English
Saigusa, Mikio; Kimura, Haruyuki; Kusama, Yoshinori; Kramer, G. J.*; Ozeki, Takahisa; Moriyama, Shinichi; Oikawa, Toshihiro; Neyatani, Yuzuru; Kondoh, Takashi
Plasma Physics and Controlled Fusion, 40(9), p.1647 - 1659, 1998/00
Times Cited Count：35 Percentile：72.04(Physics, Fluids & Plasmas)no abstracts in English
-ray and collective Thomson scattering measurementsKondoh, Takashi; Nagashima, Akira; ; Richards, R. K.*; Hutchinson, D. P.*; Moriyama, Shinichi; Morioka, Atsuhiko; Tobita, Kenji; Kusama, Yoshinori; V.G.Kiptily*
Proc. of 1998 Int. Congress on Plasma Physics, p.1478 - 1481, 1998/00
no abstracts in English
-ray measurements in JT-60UKondoh, Takashi; Kusama, Yoshinori; Kimura, Haruyuki; Saigusa, Mikio; Fujii, Tsuneyuki; Moriyama, Shinichi; Nemoto, Masahiro; Tobita, Kenji; Morioka, Atsuhiko; Nagashima, Keisuke; et al.
Journal of Nuclear Materials, 241-243, p.564 - 568, 1997/02
Times Cited Count：12 Percentile：67.93(Materials Science, Multidisciplinary)no abstracts in English
Saigusa, Mikio; Moriyama, Shinichi; Kimura, Haruyuki; Hamamatsu, Kiyotaka; Fujii, Tsuneyuki; Hosogane, Nobuyuki; Sugie, Tatsuo; Kubo, Hirotaka
Japanese Journal of Applied Physics, 36(1A), p.345 - 349, 1997/01
Times Cited Count：1 Percentile：9.52(Physics, Applied)no abstracts in English
Isobe, Mitsutaka*; Tobita, Kenji; Nishitani, Takeo; Kusama, Yoshinori; *
Nuclear Fusion, 37(4), p.437 - 444, 1997/00
Times Cited Count：12 Percentile：41.47(Physics, Fluids & Plasmas)no abstracts in English
