Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration

T. Akiyama; S. Okamura; T. Minami; A. Fujisawa; T. Oishi; S. Kado; M. Takeuchi; K. Toi; K. Ida; M. Yoshinuma; K. Matsuoka; M. Isobe; S. Nishimura; C. Suzuki; Y. Yoshimura; K. Nagaoka; C. Takahashi

doi:10.1088/0741-3335/48/11/009

Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration

T. Akiyama, S. Okamura, T. Minami, A. Fujisawa, T. Oishi, S. Kado, M. Takeuchi, K. Toi, K. Ida, M. Yoshinuma, K. Matsuoka, M. Isobe, S. Nishimura, C. Suzuki, Y. Yoshimura, K. Nagaoka, C. Takahashi

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

12 Citations (Scopus)

Abstract

An improved confinement state by the formation of an edge transport barrier can be obtained in the compact helical system. A power threshold exists, as is the case for the H-mode in tokamaks. The threshold scales as . These dependences are similar to those in tokamaks. The threshold also depends on magnetic configuration parameters such as the position of the magnetic axis. The absolute value of the threshold is 1-3 times larger than the tokamak H-mode power scaling.

Original language	English
Article number	009
Pages (from-to)	1683-1692
Number of pages	10
Journal	Plasma Physics and Controlled Fusion
Volume	48
Issue number	11
DOIs	https://doi.org/10.1088/0741-3335/48/11/009
Publication status	Published - Nov 1 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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Akiyama, T., Okamura, S., Minami, T., Fujisawa, A., Oishi, T., Kado, S., Takeuchi, M., Toi, K., Ida, K., Yoshinuma, M., Matsuoka, K., Isobe, M., Nishimura, S., Suzuki, C., Yoshimura, Y., Nagaoka, K., & Takahashi, C. (2006). Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration. Plasma Physics and Controlled Fusion, 48(11), 1683-1692. Article 009. https://doi.org/10.1088/0741-3335/48/11/009

Akiyama, T, Okamura, S, Minami, T, Fujisawa, A, Oishi, T, Kado, S, Takeuchi, M, Toi, K, Ida, K, Yoshinuma, M, Matsuoka, K, Isobe, M, Nishimura, S, Suzuki, C, Yoshimura, Y, Nagaoka, K & Takahashi, C 2006, 'Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration', Plasma Physics and Controlled Fusion, vol. 48, no. 11, 009, pp. 1683-1692. https://doi.org/10.1088/0741-3335/48/11/009

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abstract = "An improved confinement state by the formation of an edge transport barrier can be obtained in the compact helical system. A power threshold exists, as is the case for the H-mode in tokamaks. The threshold scales as . These dependences are similar to those in tokamaks. The threshold also depends on magnetic configuration parameters such as the position of the magnetic axis. The absolute value of the threshold is 1-3 times larger than the tokamak H-mode power scaling.",

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AU - Akiyama, T.

AU - Okamura, S.

AU - Minami, T.

AU - Fujisawa, A.

AU - Oishi, T.

AU - Kado, S.

AU - Takeuchi, M.

AU - Toi, K.

AU - Ida, K.

AU - Yoshinuma, M.

AU - Matsuoka, K.

AU - Isobe, M.

AU - Nishimura, S.

AU - Suzuki, C.

AU - Yoshimura, Y.

AU - Nagaoka, K.

AU - Takahashi, C.

PY - 2006/11/1

Y1 - 2006/11/1

N2 - An improved confinement state by the formation of an edge transport barrier can be obtained in the compact helical system. A power threshold exists, as is the case for the H-mode in tokamaks. The threshold scales as . These dependences are similar to those in tokamaks. The threshold also depends on magnetic configuration parameters such as the position of the magnetic axis. The absolute value of the threshold is 1-3 times larger than the tokamak H-mode power scaling.

AB - An improved confinement state by the formation of an edge transport barrier can be obtained in the compact helical system. A power threshold exists, as is the case for the H-mode in tokamaks. The threshold scales as . These dependences are similar to those in tokamaks. The threshold also depends on magnetic configuration parameters such as the position of the magnetic axis. The absolute value of the threshold is 1-3 times larger than the tokamak H-mode power scaling.

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Scaling of power threshold for edge transport barrier formation in CHS with density, magnetic field and magnetic configuration

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