High power heating results on JT-60

M. Akiba, H. Aikawa, N. Akaoka, H. Akasaka, N. Akino, T. Akiyama, T. Ando, K. Annoh, T. Aoyagi, T. Arai, K. Arakawa, M. Araki, M. Azumi, S. Chiba, M. Dairaku, N. Ebisawa, T. Fujii, T. Fukuda, A. Funahashi, H. FurukawaK. Hamamatsu, M. Hanada, M. Hara, K. Haraguchi, H. Hiratsuka, T. Hirayama, S. Hiroki, K. Hiruta, M. Honda, M. Honda, H. Horiike, R. Hosoda, N. Hosogane, T. Iijima, Y. Ikeda, K. Ikeda, T. Imai, T. Inoue, N. Isaji, M. Isaka, S. Ishida, K. Itami, N. Ichige, T. Itoh, T. Kakizaki, A. Kaminaga, T. Katoh, M. Kawai, M. Kawabe, Y. Kawamata, K. Kawasaki, K. Kikuchi, M. Kikuchi, H. Kimura, T. Kimura, H. Kishimoto, S. Kitamura, A. Kitsunezaki, K. Kiyono, N. Kobayashi, K. Kodama, S. Koide, Y. Koide, T. Kioke, M. Komata, I. Kondo, S. Konoshima, H. Kubo, S. Kunieda, K. Kurihara, M. Kuriyama, T. Kuroda, M. Kusaka, Y. Kusama, Y. Mabuchi, S. Maehara, K. Maeno, T. Matoba, S. Matsuda, M. Matsukawa, T. Matsukawa, M. Matsuoka, Y. Miura, N. Miya, K. Miyachi, Y. Mori, S. Moriyama, M. Mutoh, M. Nagami, A. Nagashima, K. Nagashima, T. Nagashima, S. Nagaya, O. Naitoh, H. Nakamura, Y. Nakamura, M. Nemoto, Y. Neyatani, H. Ninomiya, N. Nishino, T. Nishitani, K. Obara, H. Obinata, Y. Ogawa, N. Ogiwara, T. Ohga, Y. Ohara, K. Ohasa, H. Oohara, T. Ohshima, M. Ohkubo, S. Ohsawa, K. Ohta, M. Ohta, M. Ohtaka, Y. Ohuchi, A. Oikawa, H. Okumura, Y. Okumura, K. Omori, S. Omori, Y. Omori, T. Ozeki, M. Saegusa, N. Saitoh, K. Sakamoto, A. Sakasai, S. Sakata, T. Sasajima, K. Satou, M. Satou, M. Satou, A. Sakurai, M. Sawahata, T. Sebata, M. Seimiya, M. Seki, S. Seki, K. Shibanuma, R. Shimada, T. Shimada, K. Shimizu, M. Shimizu, Y. Shimomura, S. Shinozaki, H. Shirai, H. Shirakata, M. Shitomi, K. Suganuma, T. Sugie, T. Sugiyama, H. Sunaoshi, K. Suzuki, M. Suzuki, N. Suzuki, N. Suzuki, S. Suzuki, Y. Suzuki, M. Takahashi, S. Takahashi, T. Takahashi, M. Takasaki, H. Takatsu, H. Takeuchi, A. Takeshita, T. Takizuka, S. Tamura, S. Tanaka, T. Tanaka, K. Tani, M. Terakado, T. Terakado, K. Tobita, T. Tokutake, T. Totsuka, N. Toyoshima, F. Tusda, T. Tsugita, S. Tsuji, Y. Tsukahara, M. Tsuneoka, K. Uehara, M. Umechara, Y. Uramoto, H. Usami, K. Ushigusa, K. Usui, J. Yagyu, M. Yamagiwa, M. Yamamoto, T. Yamamoto, O. Yamashita, T. Yamazaki, T. Yasukawa, K. Yokokura, H. Yokomizo, K. Yokoyama, K. Yoshikawa, M. Yoshikawa, H. Yoshida, R. Yoshino, Y. Yoshioka, I. Yonekawa, T. Yoneda, K. Watanabe, M. G. Bell, R. J. Bickerton, W. Englehardt, R. J. Goldston, E. Kallne, J. Kallne, H. W. Jugel, P. L. Mondiono, F. X. Solnder, Y. Takase, P. R. Thomas, K. L. Wong

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

From June to October 1987, JT-60 achieved fusion product (ne(0). tau E*.Ti(0)) of 6*1019 m -3.keV.s with hydrogen plasma at plasma current of 2.8 to 3.1 MA with neutral beam power of approximately 20 MW. The central electron density of 1.3*1020 m-3 was obtained at plasma current of 3 MA with 13 approximately 20 MW neutral beam power and the confinement time reached 0.14-0.18 s. An offset linear scaling law like the Shimomura-Odajima scaling on confinement time will be able to reproduce experimental data better than that of the Goldston type scaling. With low beam energy injection approximately 40 keV, confinement degradation was found. Many short periods (0.05 approximately 0.1 s) of H-mode phase were found in outside X-point divertor discharges with NB or NB+RF(LH or IC) heating power above 16 MW. However, improvement in energy confinement time was limited to 10 %. The ballooning/interchange stability analyses were also made for the outside X-point divertor equilibrium in connection with H0-phase capability. Heating powers of 9.5 MW and 1.9 MW were obtained by LHRF, ICRF injection, respectively. In combined LHRF and NB heating, the incremental energy confinement time of 0.064 s was obtained, which is the same level of that of NB heating only. In combined NB and on-axis ICRF heating of low ne discharge, an incremental energy confinement time of 0.21 s was obtained, which is three times as long as those of NB or ICRF heating only. High energy beam ions were accelerated by ICRF in the central region of the plasma.

Original languageEnglish (US)
Article number004
Pages (from-to)1405-1416
Number of pages12
JournalPlasma Physics and Controlled Fusion
Volume30
Issue number11
DOIs
StatePublished - 1988

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'High power heating results on JT-60'. Together they form a unique fingerprint.

  • Cite this

    Akiba, M., Aikawa, H., Akaoka, N., Akasaka, H., Akino, N., Akiyama, T., Ando, T., Annoh, K., Aoyagi, T., Arai, T., Arakawa, K., Araki, M., Azumi, M., Chiba, S., Dairaku, M., Ebisawa, N., Fujii, T., Fukuda, T., Funahashi, A., ... Wong, K. L. (1988). High power heating results on JT-60. Plasma Physics and Controlled Fusion, 30(11), 1405-1416. [004]. https://doi.org/10.1088/0741-3335/30/11/004