Transport of the plasma with neoclassical internal transport barrier on CHS

T. Minami; A. Fujisawa; H. Iguchi; S. Murakami; M. Yokoyama; Y. Yoshimura; M. Isobe; S. Nishimura; C. Suzuki; I. Nomura; K. Ida; K. Matsuoka; S. Okamura; C. Takahashi

doi:10.1088/0741-3335/44/5A/317

Transport of the plasma with neoclassical internal transport barrier on CHS

T. Minami, A. Fujisawa, H. Iguchi, S. Murakami, M. Yokoyama, Y. Yoshimura, M. Isobe, S. Nishimura, C. Suzuki, I. Nomura, K. Ida, K. Matsuoka, S. Okamura, C. Takahashi

Research output: Contribution to journal › Conference article › peer-review

10 Citations (Scopus)

Abstract

The plasma with neoclassical internal transport barrier (N-ITB) has been observed for electron cyclotron heated (ECH) plasma in the Compact Helical System Heliotron/Torsatron. The N-ITB is characterized by the peaked electron temperature, with a large temperature gradient (0.43 keV cm^-1) and a large electric field shear at the barrier location. The transport analysis shows that the electron thermal conductivity in plasma with N-ITB is lower than that without N-ITB at the transport barrier. The neoclassical transport is calculated from the analytical model for the neoclassical particle flux. In the ECH plasma with N-ITB, the electron thermal conductivity χ_e is at the level of the neoclassical χ_e at the barrier transport which demonstrates that the anomalous transport is reduced to a level well below the neoclassical transport.

Original language	English
Article number	317
Pages (from-to)	A197-A201
Journal	Plasma Physics and Controlled Fusion
Volume	44
Issue number	5 A
DOIs	https://doi.org/10.1088/0741-3335/44/5A/317
Publication status	Published - May 2002
Externally published	Yes
Event	8th IAEA Technical Committee Meeting on H-Mode Physics and Transport Barriers - Toki, Japan Duration: Sept 5 2001 → Sept 7 2001

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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10.1088/0741-3335/44/5A/317

Cite this

Minami, T., Fujisawa, A., Iguchi, H., Murakami, S., Yokoyama, M., Yoshimura, Y., Isobe, M., Nishimura, S., Suzuki, C., Nomura, I., Ida, K., Matsuoka, K., Okamura, S., & Takahashi, C. (2002). Transport of the plasma with neoclassical internal transport barrier on CHS. Plasma Physics and Controlled Fusion, 44(5 A), A197-A201. Article 317. https://doi.org/10.1088/0741-3335/44/5A/317

Minami, T, Fujisawa, A, Iguchi, H, Murakami, S, Yokoyama, M, Yoshimura, Y, Isobe, M, Nishimura, S, Suzuki, C, Nomura, I, Ida, K, Matsuoka, K, Okamura, S & Takahashi, C 2002, 'Transport of the plasma with neoclassical internal transport barrier on CHS', Plasma Physics and Controlled Fusion, vol. 44, no. 5 A, 317, pp. A197-A201. https://doi.org/10.1088/0741-3335/44/5A/317

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abstract = "The plasma with neoclassical internal transport barrier (N-ITB) has been observed for electron cyclotron heated (ECH) plasma in the Compact Helical System Heliotron/Torsatron. The N-ITB is characterized by the peaked electron temperature, with a large temperature gradient (0.43 keV cm-1) and a large electric field shear at the barrier location. The transport analysis shows that the electron thermal conductivity in plasma with N-ITB is lower than that without N-ITB at the transport barrier. The neoclassical transport is calculated from the analytical model for the neoclassical particle flux. In the ECH plasma with N-ITB, the electron thermal conductivity χe is at the level of the neoclassical χe at the barrier transport which demonstrates that the anomalous transport is reduced to a level well below the neoclassical transport.",

author = "T. Minami and A. Fujisawa and H. Iguchi and S. Murakami and M. Yokoyama and Y. Yoshimura and M. Isobe and S. Nishimura and C. Suzuki and I. Nomura and K. Ida and K. Matsuoka and S. Okamura and C. Takahashi",

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T1 - Transport of the plasma with neoclassical internal transport barrier on CHS

AU - Minami, T.

AU - Fujisawa, A.

AU - Iguchi, H.

AU - Murakami, S.

AU - Yokoyama, M.

AU - Yoshimura, Y.

AU - Isobe, M.

AU - Nishimura, S.

AU - Suzuki, C.

AU - Nomura, I.

AU - Ida, K.

AU - Matsuoka, K.

AU - Okamura, S.

AU - Takahashi, C.

PY - 2002/5

Y1 - 2002/5

N2 - The plasma with neoclassical internal transport barrier (N-ITB) has been observed for electron cyclotron heated (ECH) plasma in the Compact Helical System Heliotron/Torsatron. The N-ITB is characterized by the peaked electron temperature, with a large temperature gradient (0.43 keV cm-1) and a large electric field shear at the barrier location. The transport analysis shows that the electron thermal conductivity in plasma with N-ITB is lower than that without N-ITB at the transport barrier. The neoclassical transport is calculated from the analytical model for the neoclassical particle flux. In the ECH plasma with N-ITB, the electron thermal conductivity χe is at the level of the neoclassical χe at the barrier transport which demonstrates that the anomalous transport is reduced to a level well below the neoclassical transport.

AB - The plasma with neoclassical internal transport barrier (N-ITB) has been observed for electron cyclotron heated (ECH) plasma in the Compact Helical System Heliotron/Torsatron. The N-ITB is characterized by the peaked electron temperature, with a large temperature gradient (0.43 keV cm-1) and a large electric field shear at the barrier location. The transport analysis shows that the electron thermal conductivity in plasma with N-ITB is lower than that without N-ITB at the transport barrier. The neoclassical transport is calculated from the analytical model for the neoclassical particle flux. In the ECH plasma with N-ITB, the electron thermal conductivity χe is at the level of the neoclassical χe at the barrier transport which demonstrates that the anomalous transport is reduced to a level well below the neoclassical transport.

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VL - 44

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T2 - 8th IAEA Technical Committee Meeting on H-Mode Physics and Transport Barriers

Y2 - 5 September 2001 through 7 September 2001

ER -

Transport of the plasma with neoclassical internal transport barrier on CHS

Abstract

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