Ray-tracing through EC resonance and the wave energy flux

被引：8
|
作者：
Westerhof, E
Tokman, MD
Gavrilova, MA
机构：
[1] EURATOM, FOM, Inst Plasmafys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands
[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603600, Russia
来源：
FUSION ENGINEERING AND DESIGN | 2001年 / 53卷
基金：
俄罗斯基础研究基金会; 欧盟地平线“2020”;
关键词：
ray-tracing; electron cyclotron (EC) resonance; wave energy flux;
D O I：
10.1016/S0920-3796(00)00475-0
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
A paradox in the theory of wave propagation through electron cyclotron (EC) resonance is noted: absorption is weak as required for the validity of WKB theory or geometric optics, yet the wave power flux given by the theory is in clear disagreement with the predicted ray-trajectories. The paradox is traced to the large anti-Hermitian parts of the dielectric tensor near resonance. The latter are shown to modify the wave power flux. The modified flux is in agreement with the ray-trajectories. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：47 / 51
页数：5
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