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. HamamatsuY. 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

78 Citations (Scopus)

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
Pages (from-to)3917-3921
Number of pages5
JournalPhysical review letters
Volume79
Issue number20
DOIs
Publication statusPublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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