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Ohira, Masashi*; Katashima, Takuya*; Naito, Mitsuru*; Aoki, Daisuke*; Yoshikawa, Yusuke*; Iwase, Hiroki*; Takata, Shinichi; Miyata, Kanjiro*; Chung, U.-I.*; Sakai, Takamasa*; et al.
Advanced Materials, 34(13), p.2108818_1 - 2108818_9, 2022/01
Times Cited Count：13 Percentile：89.15(Chemistry, Multidisciplinary)Kimura, Haruyuki; Inutake, Masaaki*; Kikuchi, Mitsuru; Ogawa, Yuichi*; Kamada, Yutaka; Ozeki, Takahisa; Naito, Osamu; Takase, Yuichi*; Ide, Shunsuke; Nagasaki, Kazunobu*; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 83(1), p.81 - 93, 2007/01
no abstracts in English
Kikuchi, Mitsuru; Suzuki, Takahiro; Sakamoto, Yoshiteru; Fujita, Takaaki; Naito, Osamu; JT-60 Team
Europhysics Conference Abstracts (CD-ROM), 29C, 4 Pages, 2005/00
Until 1995, it is experimentally confirmed that parallel transport of tokamak follows prediction of neoclassical theory (Kikuchi, Azumi, PPCF review). But it relies on gloval parameter. Since then, local measurement of bootstrap current density or electrical conductivity becomes possible by the development of new plasma diagnostics technique. In this paper, method of comparison of current profile evaluation and its application to electrical conductivity and bootstrap current density is reported.
Ushigusa, Kenkichi; Ide, Shunsuke; Oikawa, Toshihiro; Suzuki, Takahiro; Kamada, Yutaka; Fujita, Takaaki; Ikeda, Yoshitaka; Naito, Osamu; Matsuoka, Mamoru*; Kondoh, Takashi; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.255 - 277, 2002/09
Times Cited Count：10 Percentile：15.15(Nuclear Science & Technology)Studies on non-inductive current drive and development of an integrated steady-state high performance operation in JT-60 are reviewed. Experiments on lower hybrid current drive in JT-60 haven shown a large non-inductive current up to 3.5MA, high current drive efficiency of 3.6x1019m-2A/W. Basic studies on LH waves in JT-60 have contributed to understand current drive physics. Significant progress in neutral beam current drive has been made in JT-60 by testing the performance of negative ion based NBI (N-NBI). The CD efficiency of ~1.5x1019m-2A /W, and N-NB driven current of ~1MA have been demonstrated in N-NBCD. Strongly localized driven current by electron cyclotron current drive was identified with a fundamental O-mode scheme. Efficiency of 0.5x1019m-2A/W and EC driven current of 0.2MA were achieved and suppression of neo-classical tearing mode was demonstrated. Based on these developments, two integrated steady-state operation scenarios were developed in JT-60, which are reversed magnetic shear (R/S) plasmas and high bp ELMy H-mode. In these operation regimes, discharges have been sustained near the steady-state current profile under full non-inductive current drive. High performance plasmas with a high nDotETio and at high normalized density were also produced under fully non-inductive condition in high bp ELMy H-mode and R/S mode.
Kamada, Yutaka; Fujita, Takaaki; Ishida, Shinichi; Kikuchi, Mitsuru; Ide, Shunsuke; Takizuka, Tomonori; Shirai, Hiroshi; Koide, Yoshihiko; Fukuda, Takeshi; Hosogane, Nobuyuki; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.185 - 254, 2002/09
Times Cited Count：34 Percentile：48.48(Nuclear Science & Technology)With the main aim of providing physics basis for ITER and the steady-state tokamak reactors, JT-60/JT-60U has been developing and optimizing the operational concepts, and extending the discharge regimes toward sustainment of high integrated performance in the reactor relevant parameter regime. In addition to achievement of the equivalent break-even condition (QDTeq up to 1.25) and a high fusion triple product = 1.5E21 m-3skeV, JT-60U has demonstrated the integrated performance of high confinement, high beta-N, full non-inductive current drive with a large fraction of bootstrap current in the reversed magnetic shear and in the high-beta-p ELMy H mode plasmas characterized by both internal and edge transport barriers. The key factors in optimizing these plasmas are profile and shape controls. As represented by discovery of various Internal Transport Barriers, JT-60/JT-60U has been emphasizing freedom and restriction of profiles in various confinement modes. JT-60U has demonstrated applicability of these high confinement modes to ITER and also clarified remaining issues.
Ando, Toshinari; Kato, Takashi; Ushigusa, Kenkichi; Nishio, Satoshi; Kurihara, Ryoichi; Aoki, Isao; Hamada, Kazuya; Tsuji, Hiroshi; Hasegawa, Mitsuru*; Naito, Shuji*
Fusion Engineering and Design, 58-59, p.13 - 16, 2001/11
Times Cited Count：10 Percentile：58.96(Nuclear Science & Technology)no abstracts in English
Shirai, Hiroshi; Kikuchi, Mitsuru; Takizuka, Tomonori; Fujita, Takaaki; Koide, Yoshihiko; Sakamoto, Yoshiteru; Naito, Osamu; Hatae, Takaki; Isayama, Akihiko; Kamada, Yutaka; et al.
Plasma Physics and Controlled Fusion, 42(suppl.5A), p.A109 - A115, 2000/05
Times Cited Count：28 Percentile：64.2(Physics, Fluids & Plasmas)no abstracts in English
shearing in improved confinement regimes in JT-60UShirai, Hiroshi; Kikuchi, Mitsuru; Takizuka, Tomonori; Fujita, Takaaki; Koide, Yoshihiko; Rewoldt, G.*; Mikkelsen, D. R.*; Budny, R.*; Tang, W. M.*; Kishimoto, Yasuaki; et al.
Fusion Energy 1998, 2, p.405 - 412, 1999/00
no abstracts in English
Shirai, Hiroshi; Kikuchi, Mitsuru; Takizuka, Tomonori; Fujita, Takaaki; Koide, Yoshihiko; Rewoldt, G.*; Mikkelsen, D. R.*; Budny, R.*; Tang, W. M.*; Kishimoto, Yasuaki; et al.
Nuclear Fusion, 39(11Y), p.1713 - 1722, 1999/00
Times Cited Count：68 Percentile：87.25(Physics, Fluids & Plasmas)no abstracts in English
Hatae, Takaki; Kamada, Yutaka; Ishida, Shinichi; Fukuda, Takeshi; Takizuka, Tomonori; Shirai, Hiroshi; Koide, Yoshihiko; Kikuchi, Mitsuru; Yoshida, Hidetoshi; Naito, Osamu
Plasma Physics and Controlled Fusion, 40(6), p.1073 - 1083, 1998/00
Times Cited Count：41 Percentile：76.58(Physics, Fluids & Plasmas)no abstracts in English
Kikuchi, Mitsuru; ; ; Miya, Naoyuki; Ushigusa, Kenkichi; Nagashima, Keisuke; Aoyagi, Tetsuo; ; Neyatani, Yuzuru; Naito, Osamu; et al.
JAERI-Research 97-026, 70 Pages, 1997/03
JAERI-Research-97-026.pdf:3.23MB
no abstracts in English
Fujita, Takaaki; Ide, Shunsuke; Shirai, Hiroshi; Kikuchi, Mitsuru; Naito, Osamu; Koide, Yoshihiko; Takeji, Satoru; Kubo, Hirotaka
Physical Review Letters, 78(12), p.2377 - 2380, 1997/03
Times Cited Count：257 Percentile：98.23(Physics, Multidisciplinary)no abstracts in English
Takizuka, Tomonori; Fukuda, Takeshi; Kamada, Yutaka; Kikuchi, Mitsuru; Matsuda, Toshiaki; Miura, Yukitoshi; Naito, Osamu; Tamai, Hiroshi; D.Boucher*; G.Bracco*; et al.
Fusion Energy 1996, 2, p.795 - 806, 1997/00
no abstracts in English
Kaye, S. M.*; Greenwald, M. J.*; U.Stroth*; O.Kardaun*; A.Kus*; Schissel, D. R.*; J.DeBoo*; Bracco, G.*; K.Thomsen*; Cordey, J. G.*; et al.
Nuclear Fusion, 37(9), p.1303 - 1328, 1997/00
Times Cited Count：162 Percentile：96.76(Physics, Fluids & Plasmas)no abstracts in English
Shirai, Hiroshi; Takizuka, Tomonori; Kikuchi, Mitsuru; Mori, Masahiro; Nishitani, Takeo; Ishida, Shinichi; Kamada, Yutaka; Sato, Masayasu; Isei, Nobuaki; Koide, Yoshihiko; et al.
IAEA-CN-60/A2-17, 0, p.355 - 364, 1995/00
no abstracts in English
Sato, Masayasu; Kikuchi, Mitsuru; Fukuda, Takeshi; *; Kamada, Yutaka; Mori, Masahiro; Shirai, Hiroshi; Takizuka, Tomonori; A.A.E.von-Blokland*; Ishida, Shinichi; et al.
IAEA-CN-60/A2-9, 0, p.265 - 274, 1995/00
no abstracts in English
Kamada, Yutaka; Ushigusa, Kenkichi; Neyatani, Yuzuru; Naito, Osamu; Ozeki, Takahisa; Kawano, Yasunori; Yoshino, Ryuji; Kubo, Hirotaka; Fujita, Takaaki; Ishida, Shinichi; et al.
IAEA-CN-60/A5-5, 0, p.651 - 661, 1995/00
no abstracts in English
Tsujino, Takeshi; Naito, Yoshitaka; Maeda, Mitsuru; ; Hoshi, Michio; Izawa, Naoki; Takeshita, Isao; ; Okazaki, Shuji; Dojiri, Shigeru
Genshiryoku Kogyo, 40(5), p.9 - 59, 1994/00
no abstracts in English
and high-
values in JT-60UKamada, Yutaka; Ushigusa, Kenkichi; Naito, Osamu; Neyatani, Yuzuru; Ozeki, Takahisa; Tobita, Kenji; Ishida, Shinichi; Yoshino, Ryuji; Kikuchi, Mitsuru; Mori, Masahiro; et al.
Nuclear Fusion, 34(12), p.1605 - 1618, 1994/00
Times Cited Count：48 Percentile：80.31(Physics, Fluids & Plasmas)no abstracts in English
and high 
in JT-60UKamada, Yutaka; Ushigusa, Kenkichi; Naito, Osamu; Neyatani, Yuzuru; Ishida, Shinichi; Fujita, Takaaki; Yoshino, Ryuji; Kikuchi, Mitsuru; Mori, Masahiro; Ninomiya, Hiromasa
Plasma Physics and Controlled Fusion, 36, p.A123 - A128, 1994/00
Times Cited Count：32 Percentile：70.26(Physics, Fluids & Plasmas)no abstracts in English
