Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas

K. Ida, Y. Sakamoto, H. Takenaga, N. Oyama, K. Itoh, M. Yoshinuma, S. Inagaki, T. Kobuchi, A. Isayama, T. Suzuki, T. Fujita, G. Matsunaga, Y. Koide, M. Yoshida, S. Ide, Y. Kamada

研究成果: ジャーナルへの寄稿学術誌査読

33 被引用数 (Scopus)

抄録

A spontaneous transition phenomena between two states of a plasma with an internal transport barrier (ITB) is observed in the steady-state phase of the magnetic shear in the negative magnetic shear plasma in the JT-60U tokamak. These two ITB states are characterized by different profiles of the second radial derivative of the ion temperature inside the ITB region (one has a weak concave shape and the other has a strong convex shape) and by different degrees of sharpness of the interfaces between the L mode and the ITB region, which is determined by the turbulence penetration into the ITB region.

本文言語英語
論文番号055003
ジャーナルPhysical review letters
101
5
DOI
出版ステータス出版済み - 7月 31 2008

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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