WAVE CHAOS AND THE DEPENDENCE OF LHCD EFFICIENCY ON TEMPERATURE

被引：35

作者：

KUPFER, K

MOREAU, D

机构：

[1] CEA, Centre d'Etudes de Cadarache, Saint Paul-lez-Durance

来源：

NUCLEAR FUSION | 1992年 / 32卷 / 10期

关键词：

D O I：

10.1088/0029-5515/32/10/I12

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Weakly damped lower hybrid wave propagation is shown to be chaotic for parameter regimes typical of current drive in TORE SUPRA and JT-60. In these cases, the spectral gap is filled by wave energy that diffuses to higher parallel wavenumber k(parallel-to) in the stochastic layer. Agreement between theoretical and experimental scalings for the current drive efficiency is obtained by including nonresonant losses of wave energy due to collisions and lossy reflections near the plasma edge which reduce the efficiency at low temperatures when the spectral gap is large.

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页码：1845 / 1851

页数：7

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