Physical mechanism for the temperature dependence of lower hybrid current drive efficiency

H. Takase; K. Okano; A. Hatayama

doi:10.1088/0741-3335/33/7/002

Physical mechanism for the temperature dependence of lower hybrid current drive efficiency

H. Takase, K. Okano, A. Hatayama

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11 Citations (Scopus)

Abstract

The volume-averaged electron temperature (T_e) dependence of lower hybrid current drive efficiency is investigated by a newly-developed numerical simulation code in the framework of a ray-tracing code and a one-dimensional relativistic Fokker-Planck calculation. As a result of numerical simulations, the current drive efficiency increases with (T_e), and the dependence can be explained by the large shift of the parallel refractive index in the low-temperature region ((T_e)<or=10 keV) and by the relativistic effect in the high-temperature region (10<(T_e)<or= 20 keV). However, the current drive efficiency is not improved in the region higher than 20 keV.

Original language	English
Article number	002
Pages (from-to)	749-762
Number of pages	14
Journal	Plasma Physics and Controlled Fusion
Volume	33
Issue number	7
DOIs	https://doi.org/10.1088/0741-3335/33/7/002
Publication status	Published - 1991 Dec 1

ASJC Scopus subject areas

Nuclear Energy and Engineering
Condensed Matter Physics

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abstract = "The volume-averaged electron temperature (Te) dependence of lower hybrid current drive efficiency is investigated by a newly-developed numerical simulation code in the framework of a ray-tracing code and a one-dimensional relativistic Fokker-Planck calculation. As a result of numerical simulations, the current drive efficiency increases with (Te), and the dependence can be explained by the large shift of the parallel refractive index in the low-temperature region ((Te)e)",

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AU - Takase, H.

AU - Okano, K.

AU - Hatayama, A.

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Physical mechanism for the temperature dependence of lower hybrid current drive efficiency

Abstract

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