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

doi:10.1103/PhysRevLett.101.055003

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

核融合力学部門

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
巻	101
号	5
DOI	https://doi.org/10.1103/PhysRevLett.101.055003
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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10.1103/PhysRevLett.101.055003

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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, 101(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 2008, 'Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas', Physical review letters, vol. 101, no. 5, 055003. https://doi.org/10.1103/PhysRevLett.101.055003

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

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.",

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

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T1 - Transition between internal transport barriers with different temperature-profile curvatures in JT-60U tokamak plasmas

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

N2 - 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.

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

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