Dynamic transport study of the plasmas with transport improvement in LHD and JT-60U

K. Ida, Y. Sakamoto, S. Inagaki, H. Takenaga, A. Isayama, G. Matsunaga, R. Sakamoto, K. Tanaka, S. Ide, T. Fujita, H. Funaba, S. Kubo, M. Yoshinuma, T. Shimozuma, Y. Takeiri, K. Ikeda, C. Michael, T. Tokuzawa

研究成果: ジャーナルへの寄稿学術誌査読

15 被引用数 (Scopus)

抄録

Transport analysis during the transient phase of heating (a dynamic transport study) applied to the plasma with internal transport barriers (ITBs) in the Large Helical Device (LHD) heliotron and the JT-60U tokamak is described. In the dynamic transport study the time of transition from the L-mode plasma to the ITB plasma is clearly determined by the onset of flattening of the temperature profile in the core region and a spontaneous phase transition from a zero curvature ITB (hyperbolic tangent shaped ITB) or a positive curvature ITB (concaved shaped ITB) to a negative curvature ITB (convex shaped ITB) and its back-transition are observed. The flattening of the core region of the ITB transition and the back-transition between a zero curvature ITB and a convex ITB suggest the strong interaction of turbulent transport in space.

本文言語英語
論文番号015005
ジャーナルNuclear Fusion
49
1
DOI
出版ステータス出版済み - 1月 1 2009

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学
  • 凝縮系物理学

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