Formation of neoclassical internal transport barriers under various operational regimes on compact helical system

T. Minami; A. Fujisawa; H. Iguchi; S. Nishimura; K. Ida; M. Yokoyama; S. Murakami; Y. Yoshimura; M. Isobe; C. Suzuki; K. Nagaoka; T. Akiyama; M. Yoshinuma; A. Shimizu; C. Takahashi; K. Matsuoka; S. Okamura

doi:10.1088/0741-3335/46/5A/031

Formation of neoclassical internal transport barriers under various operational regimes on compact helical system

T. Minami, A. Fujisawa, H. Iguchi, S. Nishimura, K. Ida, M. Yokoyama, S. Murakami, Y. Yoshimura, M. Isobe, C. Suzuki, K. Nagaoka, T. Akiyama, M. Yoshinuma, A. Shimizu, C. Takahashi, K. Matsuoka, S. Okamura

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Optimization has been carried out on the operational regime where neoclassical internal transport barriers (N-ITBs) are formed. The condition of the forming N-ITB is sensitive to the location of the electron cyclotron heating resonance zone. A high electron temperature is obtained for the central heating (-2 cm < R_resonance < 2 cm). The variation of the magnetic axis location affects the formation of the N-ITB. The electron and ion temperatures at the magnetic axis location (R_ax) of 94.9 cm are higher than those at 92.1 and 97.4 cm. This result indicates that the neoclassical flux and the created radial electric field are influenced by the magnetic field structure.

Original language	English
Pages (from-to)	A285-A290
Journal	Plasma Physics and Controlled Fusion
Volume	46
Issue number	5 SUPPL. A
DOIs	https://doi.org/10.1088/0741-3335/46/5A/031
Publication status	Published - May 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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10.1088/0741-3335/46/5A/031

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Minami, T., Fujisawa, A., Iguchi, H., Nishimura, S., Ida, K., Yokoyama, M., Murakami, S., Yoshimura, Y., Isobe, M., Suzuki, C., Nagaoka, K., Akiyama, T., Yoshinuma, M., Shimizu, A., Takahashi, C., Matsuoka, K., & Okamura, S. (2004). Formation of neoclassical internal transport barriers under various operational regimes on compact helical system. Plasma Physics and Controlled Fusion, 46(5 SUPPL. A), A285-A290. https://doi.org/10.1088/0741-3335/46/5A/031

Minami, T, Fujisawa, A, Iguchi, H, Nishimura, S, Ida, K, Yokoyama, M, Murakami, S, Yoshimura, Y, Isobe, M, Suzuki, C, Nagaoka, K, Akiyama, T, Yoshinuma, M, Shimizu, A, Takahashi, C, Matsuoka, K & Okamura, S 2004, 'Formation of neoclassical internal transport barriers under various operational regimes on compact helical system', Plasma Physics and Controlled Fusion, vol. 46, no. 5 SUPPL. A, pp. A285-A290. https://doi.org/10.1088/0741-3335/46/5A/031

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title = "Formation of neoclassical internal transport barriers under various operational regimes on compact helical system",

abstract = "Optimization has been carried out on the operational regime where neoclassical internal transport barriers (N-ITBs) are formed. The condition of the forming N-ITB is sensitive to the location of the electron cyclotron heating resonance zone. A high electron temperature is obtained for the central heating (-2 cm < Rresonance < 2 cm). The variation of the magnetic axis location affects the formation of the N-ITB. The electron and ion temperatures at the magnetic axis location (Rax) of 94.9 cm are higher than those at 92.1 and 97.4 cm. This result indicates that the neoclassical flux and the created radial electric field are influenced by the magnetic field structure.",

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T1 - Formation of neoclassical internal transport barriers under various operational regimes on compact helical system

AU - Minami, T.

AU - Fujisawa, A.

AU - Iguchi, H.

AU - Nishimura, S.

AU - Ida, K.

AU - Yokoyama, M.

AU - Murakami, S.

AU - Yoshimura, Y.

AU - Isobe, M.

AU - Suzuki, C.

AU - Nagaoka, K.

AU - Akiyama, T.

AU - Yoshinuma, M.

AU - Shimizu, A.

AU - Takahashi, C.

AU - Matsuoka, K.

AU - Okamura, S.

PY - 2004/5

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N2 - Optimization has been carried out on the operational regime where neoclassical internal transport barriers (N-ITBs) are formed. The condition of the forming N-ITB is sensitive to the location of the electron cyclotron heating resonance zone. A high electron temperature is obtained for the central heating (-2 cm < Rresonance < 2 cm). The variation of the magnetic axis location affects the formation of the N-ITB. The electron and ion temperatures at the magnetic axis location (Rax) of 94.9 cm are higher than those at 92.1 and 97.4 cm. This result indicates that the neoclassical flux and the created radial electric field are influenced by the magnetic field structure.

AB - Optimization has been carried out on the operational regime where neoclassical internal transport barriers (N-ITBs) are formed. The condition of the forming N-ITB is sensitive to the location of the electron cyclotron heating resonance zone. A high electron temperature is obtained for the central heating (-2 cm < Rresonance < 2 cm). The variation of the magnetic axis location affects the formation of the N-ITB. The electron and ion temperatures at the magnetic axis location (Rax) of 94.9 cm are higher than those at 92.1 and 97.4 cm. This result indicates that the neoclassical flux and the created radial electric field are influenced by the magnetic field structure.

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Formation of neoclassical internal transport barriers under various operational regimes on compact helical system

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