Achievement of high fusion performance in jt-60u reversed shear discharges

  • S. Ishida
  • , T. Fujita
  • , H. Akasaka
  • , N. Akino
  • , K. Annou
  • , T. Aoyagi
  • , T. Arai
  • , K. Arakawa
  • , N. Asakura
  • , M. Azumi
  • , R. Budny
  • , S. Chiba
  • , O. Da Costa
  • , N. Ebisawa
  • , T. Fujii
  • , T. Fukuda
  • , A. Funahashi
  • , L. Grisham
  • , S. Gunji
  • , K. Hamamatsu
  • Y. Hasegawa, T. Hatae, S. Higashijima, H. Hiratsuka, S. Hirauchi, T. Hirayama, A. Honda, M. Honda, N. Hosogane, H. Ichige, S. Ide, Y. Ikeda, M. Isaka, A. Isayama, N. Isei, Y. Ishii, N. Isozaki, K. Itami, T. Itoh, T. Iwahashi, Y. Kamada, A. Kaminaga, T. Kashiwabara, M. Kawai, Y. Kawamata, Y. Kawano, D. Kazama, M. Kazawa, M. Kikuchi, H. Kimura, T. Kimura, H. Kishimoto, Y. Kishimoto, S. Kitamura, K. Kiyono, K. Kodama, Y. Koide, S. Kokusen, T. Kondoh, S. Konoshima, J. Koog, G. J. Kramer, H. Kubo, K. Kurihara, G. Kurita, M. Kuriyama, Y. Kusama, K. Masaki, T. Matsuda, T. Matsumoto, M. Matukawa, T. Miura, N. Miya, K. Miyachi, H. Miyata, Y. Miyo, K. Mogaki, M. Mori, M. Morimoto, S. Morioka, S. Moriyama, M. Nagami, A. Nagashima, K. Nagashima, S. Nagaya, O. Naito, Y. Nakamura, M. Nemoto, Y. Neyatani, T. Nishitani, N. Ogiwara, T. Ohga, M. Ohsawa, T. Ohshima, T. Oikawa, T. Okabe, J. Okano, K. Omori, S. Omori, Y. Omori, Y. Onose, H. Oohara, T. Ozeki, M. Saidoh, M. Saigusa, N. Saito, A. Sakasai, S. Sakata, S. Sakurai, T. Sasajima, M. Sato, S. D. Scott, M. Seimiya, H. Seiki, M. Seki, M. Shimada, K. Shimizu, M. Shimizu, M. Shimono, S. Shinozaki, H. Shirai, M. Shitomi, K. Suganuma, T. Sugie, H. Sunaoshi, M. Takahashi, S. Takahashi, S. Takeji, H. Takenaga, T. Takizuka, H. Tamai, M. Terakado, T. Terakado, K. Tobita, S. Tokuda, T. Totsuka, Y. Toyokawa, N. Toyoshima, K. Tsuchiya, T. Tsugita, Y. Tsukahara, T. Tuda, Y. Uramoto, K. Ushigusa, K. Usui, J. Yagyu, M. Yamagiwa, M. Yamamoto, T. Yamamoto, O. Yamashita, K. Yokokura, H. Yoshida, M. Yoshida, R. Yoshino

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

Fusion performance of reversed shear discharges with an L-mode edge has been significantly improved in a thermonuclear dominant regime with up to 2.8 MA of plasma current in the JT-60U tokamak. The core plasma energy is efficiently confined due to the existence of persistent internal transport barriers formed for both ions and electrons at a large minor radius of τ/a∼0.7 near the boundary of the reversed shear region. In an assumed deuterium-tritium fuel, the peak fusion amplification factor defined for transient conditions involving the dW/dt term would be in excess of unity.

Original languageEnglish (US)
Pages (from-to)3917-3921
Number of pages5
JournalPhysical review letters
Volume79
Issue number20
DOIs
StatePublished - 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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