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Takenaga, Hidenobu; Asakura, Nobuyuki; Kubo, Hirotaka; Konoshima, Shigeru; Nakano, Tomohide; Porter, G.*; Rognlien, T.*; Rensink, M.*
Journal of Plasma and Fusion Research SERIES, Vol.7, p.35 - 39, 2006/00
no abstracts in English
Takenaga, Hidenobu
Purazuma, Kaku Yugo Gakkai-Shi, 79(8), p.790 - 804, 2003/08
no abstracts in English
Takenaga, Hidenobu; Kubo, Hirotaka; Higashijima, Satoru; Asakura, Nobuyuki; Sugie, Tatsuo; Konoshima, Shigeru; Shimizu, Katsuhiro; Nakano, Tomohide; Itami, Kiyoshi; Sakasai, Akira; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.327 - 356, 2002/09
Times Cited Count：10 Percentile：15.15(Nuclear Science & Technology)no abstracts in English
Takenaga, Hidenobu; JT-60 Team
Physics of Plasmas, 8(5), p.2217 - 2223, 2001/05
Times Cited Count：44 Percentile：76.85(Physics, Fluids & Plasmas)no abstracts in English
Ishijima, Tatsuo*; Kubo, Hirotaka; Shimada, Michiya; Konoshima, Shigeru; Higashijima, Satoru; Hosogane, Nobuyuki; Sakasai, Akira; Itami, Kiyoshi; Sugie, Tatsuo; JT-60 Team
Plasma Physics and Controlled Fusion, 41(9), p.1155 - 1166, 1999/09
Times Cited Count：13 Percentile：42.41(Physics, Fluids & Plasmas)no abstracts in English
Takenaga, Hidenobu; Sakasai, Akira; Koide, Yoshihiko; Sakamoto, Yoshiteru; Kubo, Hirotaka; Higashijima, Satoru; Oikawa, Toshihiro; Shirai, Hiroshi; Fujita, Takaaki; Kamada, Yutaka
Purazuma, Kaku Yugo Gakkai-Shi, 75(8), p.952 - 966, 1999/00
no abstracts in English
Shimizu, Katsuhiro; Hosogane, Nobuyuki; Takizuka, Tomonori; Shimada, Michiya; Tsuji, Shunji; Kubo, Hirotaka; Sugie, Tatsuo; Asakura, Nobuyuki; Itami, Kiyoshi; *; et al.
IAEA-CN-60/D-P2, 0, p.431 - 439, 1996/00
no abstracts in English
Shimizu, Katsuhiro; Kubo, Hirotaka; Takizuka, Tomonori; Azumi, Masafumi; Shimada, Michiya; Tsuji, Shunji; Hosogane, Nobuyuki; Sugie, Tatsuo; Sakasai, Akira; Asakura, Nobuyuki; et al.
Journal of Nuclear Materials, 220-222, p.410 - 414, 1995/00
Times Cited Count：51 Percentile：96.73(Materials Science, Multidisciplinary)no abstracts in English
Shimada, Michiya; Tsuji, Shunji; Hosogane, Nobuyuki; Ninomiya, Hiromasa
Atomic and Plasma-Material Interaction Processes in Controlled Thermonuclear Fusion, p.319 - 325, 1993/00
no abstracts in English
Shimada, Michiya
Fusion Engineering and Design, 15, p.325 - 341, 1992/00
Times Cited Count：17 Percentile：81.26(Nuclear Science & Technology)no abstracts in English
Sakasai, Akira; Koide, Yoshihiko; Kubo, Hirotaka; Sugie, Tatsuo; Shimada, Michiya; Hirayama, Toshio; Asakura, Nobuyuki; Kawano, Yasunori; Hosogane, Nobuyuki; Nakamura, Hiroo
Journal of Nuclear Materials, 196-198, p.472 - 475, 1992/00
Times Cited Count：3 Percentile：35.31(Materials Science, Multidisciplinary)no abstracts in English
Sugie, Tatsuo; Kubo, Hirotaka; Sakasai, Akira; Koide, Yoshihiko; Hirayama, Toshio; Shimada, Michiya; Itami, Kiyoshi; Kawano, Yasunori; Nishitani, Takeo; Nagashima, Keisuke; et al.
Kaku Yugo Kenkyu, 65(SPECIAL ISSUE), p.287 - 306, 1991/03
no abstracts in English
Ogawa, Hiroaki; Kasai, Satoshi; Tamai, Hiroshi; Kawashima, Hisato; *; Yamauchi, Toshihiko; Mori, Masahiro; Miura, Yukitoshi; Suzuki, Norio; Sengoku, Seio; et al.
Journal of the Physical Society of Japan, 59(11), p.3962 - 3976, 1990/11
Times Cited Count：4 Percentile：46.26(Physics, Multidisciplinary)no abstracts in English
Homma, Yuki; Hoshino, Kazuo; Yamoto, Shohei*; Asakura, Nobuyuki; Tokunaga, Shinsuke; Hatayama, Akiyoshi*; Sakamoto, Yoshiteru; Hiwatari, Ryoji; Tobita, Kenji
no journal, ,
no abstracts in English
Idomura, Yasuhiro
no journal, ,
Transient plasma responses due to modulated electron heating are investigated in numerical experiments of ion temperature gradient driven trapped electron mode turbulence using gyrokinetic full-f Eulerian code GT5D. It is found that even with electron heating without particle and momentum sources such as electron cyclotron resonance heating, dominant turbulence is changed from ion turbulence to electron turbulence due to changes of the electron temperature gradient and the temperature ratio, and the resulting turbulent transport produces responses of density and rotation profiles.
Idomura, Yasuhiro; Obrejan, K.
no journal, ,
A gyrokinetic full-f Eulerian code GT5D is extended for multiple ion species. Multi-species collision operators between high Z impurities and bulk ions or electrons become multi-scale problems in velocity space, and thus, are numerically difficult problems. This issue is resolved by introducing a filter to suppress the divergence of collisional coefficients at lower energy and an implicit collision operator, and analyses of high Z impurities such as tungsten are realized. We present verification results on neoclassical transport with multiple ion species, and discuss impurity transport properties in nonlinear turbulence simulations.
Idomura, Yasuhiro; Obrejan, K.*; Asahi, Yuichi; Honda, Mitsuru*
no journal, ,
Transport mechanisms of tracer impurities in the ion temperature gradient driven (ITG) turbulence are studied using the global full-f gyrokinetic code GT5D, and it is found that neoclassical particle transport is greatly enhanced by an interaction with the ITG turbulence. The radial electric field grows by turbulent bulk particle transport driven by the ITG turbulence. A compression effect of the resulting E
B flows generates up-down asymmetric density perturbations, which are coupled with the magnetic drift to enhance neoclassical particle transport. This effect does not work for the temperature, and selectively enhances only particle transport.
