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記事

26 引用 (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.

元の言語英語
記事番号055003
ジャーナルPhysical Review Letters
101
発行部数5
DOI
出版物ステータス出版済み - 7 31 2008

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temperature profiles
curvature
shear
sharpness
ion temperature
penetration
turbulence
profiles

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas. / Ida, K.; Sakamoto, Y.; Takenaga, H.; Oyama, N.; Itoh, K.; Yoshinuma, M.; Inagaki, S.; Kobuchi, T.; Isayama, A.; Suzuki, T.; Fujita, T.; Matsunaga, G.; Koide, Y.; Yoshida, M.; Ide, S.; Kamada, Y.

:: Physical Review Letters, 巻 101, 番号 5, 055003, 31.07.2008.

研究成果: ジャーナルへの寄稿記事

Ida, K, Sakamoto, Y, Takenaga, H, Oyama, N, Itoh, K, Yoshinuma, M, Inagaki, S, Kobuchi, T, Isayama, A, Suzuki, T, Fujita, T, Matsunaga, G, Koide, Y, Yoshida, M, Ide, S & Kamada, Y 2008, 'Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas', Physical Review Letters, 巻. 101, 番号 5, 055003. https://doi.org/10.1103/PhysRevLett.101.055003
Ida, K. ; Sakamoto, Y. ; Takenaga, H. ; Oyama, N. ; Itoh, K. ; Yoshinuma, M. ; Inagaki, S. ; Kobuchi, T. ; Isayama, A. ; Suzuki, T. ; Fujita, T. ; Matsunaga, G. ; Koide, Y. ; Yoshida, M. ; Ide, S. ; Kamada, Y. / Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas. :: Physical Review Letters. 2008 ; 巻 101, 番号 5.
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abstract = "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.",
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AU - Ida, K.

AU - Sakamoto, Y.

AU - Takenaga, H.

AU - Oyama, N.

AU - Itoh, K.

AU - Yoshinuma, M.

AU - Inagaki, S.

AU - Kobuchi, T.

AU - Isayama, A.

AU - Suzuki, T.

AU - Fujita, T.

AU - Matsunaga, G.

AU - Koide, Y.

AU - Yoshida, M.

AU - Ide, S.

AU - Kamada, Y.

PY - 2008/7/31

Y1 - 2008/7/31

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