Edge transport barrier formation in compact helical system

S. Okamura, T. Minami, T. Oishi, C. Suzuki, K. Ida, M. Isobe, Y. Yoshimura, K. Nagaoka, K. Toi, A. Fujisawa, T. Akiyama, H. Iguchi, R. Ikeda, S. Kado, K. Matsuoka, H. Matsushita, K. Nakamura, H. Nakano, S. Nishimura, M. NishiuraS. Ohshima, A. Shimizu, S. Takagi, C. Takahashi, M. Takeuchi, M. Yoshinuma

研究成果: Contribution to journalArticle査読

24 被引用数 (Scopus)

抄録

The edge transport barrier (ETB) for particle transport is formed in the neutral beam (NB) heated hydrogen discharges in compact helical system (CHS). The transition to the ETB formation and the back transition are controlled by the heating power. The existence of the heating power threshold is confirmed and it is roughly proportional to the density. The Hα emission signal shows a clear drop at the transition (the timescale of signal decrease is ∼1 ms for the high heating power case). The ETB formation continues for the full duration of NB injection (100 ms) with a moderate level of radiation power loss. Local density profile measurement shows increase of the edge density and the movement of the density gradient region towards the edge.

本文言語英語
ページ(範囲)A113-A119
ジャーナルPlasma Physics and Controlled Fusion
46
5 SUPPL. A
DOI
出版ステータス出版済み - 5 2004

All Science Journal Classification (ASJC) codes

  • 原子力エネルギーおよび原子力工学
  • 凝縮系物理学

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