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Shinohara, Koji; JT-60 Team
Journal of the Korean Physical Society, 49, p.S56 - S62, 2006/12
The recent results of JT-60, such as the long discharge with the high normalized beta of 2.3 and the pulse length of 22.3 s which was 13 times longer than the current profile relaxation, and the observation of the increase of D emission and electron density as results of wall saturation will be reviewed. Additionally, the motivation and the design work will be reviewd on an on-going recent project of the ferritic insertion for the reduction of the toroidal field ripple. The pioneering works of JFT-2M in the ferritic insertion will be also reported.
Fujita, Takaaki; JT-60 Team
Nuclear Fusion, 46(3), p.S3 - S12, 2006/03
Times Cited Count:8 Percentile:27.96(Physics, Fluids & Plasmas)no abstracts in English
Takenaga, Hidenobu; Nakano, Tomohide; Asakura, Nobuyuki; Kubo, Hirotaka; Konoshima, Shigeru; Shimizu, Katsuhiro; Tsuzuki, Kazuhiro; Masaki, Kei; Tanabe, Tetsuo*; Ide, Shunsuke; et al.
Nuclear Fusion, 46(3), p.S39 - S48, 2006/03
Times Cited Count:18 Percentile:52.36(Physics, Fluids & Plasmas)no abstracts in English
Takenaga, Hidenobu; Asakura, Nobuyuki; Higashijima, Satoru; Nakano, Tomohide; Kubo, Hirotaka; Konoshima, Shigeru; Oyama, Naoyuki; Isayama, Akihiko; Ide, Shunsuke; Fujita, Takaaki; et al.
Journal of Nuclear Materials, 337-339, p.802 - 807, 2005/03
Times Cited Count:14 Percentile:67.75(Materials Science, Multidisciplinary)no abstracts in English
Takenaga, Hidenobu; Nakano, Tomohide; Asakura, Nobuyuki; Kubo, Hirotaka; Konoshima, Shigeru; Shimizu, Katsuhiro; Tsuzuki, Kazuhiro; Ide, Shunsuke; Fujita, Takaaki
Proceedings of 4th IAEA Technical Meeting on Steady-State Operation of Magnetic Fusion Devices and MHD of Advanced Scenarios (Internet), 8 Pages, 2005/02
no abstracts in English
Asakura, Nobuyuki
Plasma Physics and Controlled Fusion, 46(12B), p.B335 - B347, 2004/12
Times Cited Count:18 Percentile:51.13(Physics, Fluids & Plasmas)Particle control of the main plasma density and exhaust of impurities ions have been demonstrated using the divertor pumping under saturated divertor condition. In JT-60U, ELMy H-mode operation was recently extended to 30s (with NB heating of 8-14 MW). Total number of injected particles reached (1-4)x1023 to maintain high densities. During the long pulse ELMy H-mode of JT-60U, gas puff rate was decreased from 15 to 3Pam3/s, while pumping rate was relatively constant of ~10 Pam3/s. Thus, the divertor plate was mostly saturated. It was found that 40-50% of the injected D was retained, which are comparable to Tore-Supra long pulse and JET high density ELMy H-mode pulse. Particle balance for long pulse and/or high density plasmas are discussed. Carbon flux generated by the chemical process was increased due to increase in the target temperature. Carbon generation and carbon ion emission were gradually increased in the outer leg of the divertor and the X-point. Shielding effect of the divertor was sustained and increment of the radiation power fraction was small in 30s.
Sakakibara, Satoru*; Kurihara, Kenichi
Purazuma, Kaku Yugo Gakkai-Shi, 80(5), p.364 - 371, 2004/05
This article presents recent progress in magnetic measurements at magnetic confinement systems. The drift-problem of the integrator used in magnetic measurements is one of the major problems for plasma control and estimation of equilibrium parameters in long-pulse operation. In addition, the durability of the sensors such as a magnetic probe, a flux loop, etc., under fusion neutron irradiation environments is also important. The present status of the developments of a long-pulse integrator and a magnetic sensor are reported.
Ishii, Yasutomo; Azumi, Masafumi; Kishimoto, Yasuaki; Leboeuf, J. N.*
Nuclear Fusion, 43(7), p.539 - 546, 2003/07
no abstracts in English
Kawamata, Yoichi; Kurihara, Kenichi; Yonekawa, Izuru
Heisei-13-Nendo Denki Gakkai Genshiryoku Kenkyu Shiryo (NE-01-13), p.25 - 30, 2002/09
no abstracts in English
Kawamata, Yoichi; Yonekawa, Izuru; Kurihara, Kenichi
Proceedings of 19th IEEE/NPSS Symposium on Fusion Engineering (SOFE), p.172 - 175, 2002/00
no abstracts in English
Motoya, Kiyoichiro*; Hioki, Keiko*; Suzuki, Junichi
Journal of the Physical Society of Japan, 70(Suppl.A), p.139 - 141, 2001/05
no abstracts in English
Kawamata, Yoichi; Kurihara, Kenichi
Heisei-12-Nendo Tohoku Daigaku Gijutsu Kenkyukai Hokoku, p.110 - 112, 2001/03
no abstracts in English
Kawano, Yasunori; Chiba, Shinichi; Inoue, Akira*
Review of Scientific Instruments, 72(1), p.1068 - 1072, 2001/01
Times Cited Count:35 Percentile:82.19(Instruments & Instrumentation)no abstracts in English
Kawano, Yasunori
Purazuma, Kaku Yugo Gakkai-Shi, 76(9), p.855 - 859, 2000/09
no abstracts in English
Kawano, Yasunori; Chiba, Shinichi; Inoue, Akira*
Journal of Plasma and Fusion Research SERIES, Vol.3, p.397 - 401, 2000/00
no abstracts in English
Fujita, Takaaki; Kamada, Yutaka; Ishida, Shinichi; Neyatani, Yuzuru; Oikawa, Toshihiro; Ide, Shunsuke; Takeji, Satoru; Koide, Yoshihiko; Isayama, Akihiko; Fukuda, Takeshi; et al.
IAEA-CN-69/EX1/2 (CD-ROM), 8 Pages, 1999/00
no abstracts in English
Kurihara, Kenichi; Kawamata, Yoichi
Fusion Technology 1996, 1, p.795 - 798, 1997/00
no abstracts in English
Haruyama, Yasuyuki; Tachibana, Hiroyuki; Kojima, Takuji; *; Kashiwazaki, Shigeru*; *; *
Radioisotopes, 44(8), p.507 - 513, 1995/08
no abstracts in English
Arigane, Kenji; *; ; Seguchi, Tadao; Takahashi, Hidetake
Proc. of 4th Asian Symp. on Research Reactors, 10 Pages, 1993/00
no abstracts in English
*; Fujieda, Hirobumi*; Itami, Kiyoshi; Sugihara, Masayoshi
JAERI-M 92-145, 46 Pages, 1992/09
no abstracts in English