ORDINARY WAVE-PROPAGATION IN A TOKAMAK WITH RANDOM DENSITY-FLUCTUATIONS

被引：11

作者：

HANSEN, FR

LYNOV, JP

MICHELSEN, P

PECSELI, HL

机构：

[1] Riso Natl Lab, Roskilde, Den, Riso Natl Lab, Roskilde, Den

来源：

NUCLEAR FUSION | 1988年 / 28卷 / 05期

关键词：

PLASMAS - Wave-Plasma Interactions - TOKAMAK DEVICES;

D O I：

10.1088/0029-5515/28/5/002

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：

Electromagnetic waves with ordinary polarization, propagating almost perpendicularly to the magnetic field in a tokamak with random density fluctuations, are investigated numerically. The fluctuations are assumed to be located mainly at the plasma edge, as is appropriate for drift wave type fluctuations. The wave propagation in this fluctuating plasma is described in the limit of geometrical optics by a ray tracing code. Even low levels of relative density fluctuations (around 1%) result in significant scattering of the incoming wave beam. The variations in the wave intensity are investigated by analysing the relative dispersion of rays.

引用

页码：769 / 778

页数：10

共 22 条

[1]

AIROLDI A, 1986, FP8613 I FIS PLASM A

[2]

ARMSTRONG RJ, 1984, PLASMA PHYS CONTR F, V26, P703, DOI 10.1088/0741-3335/26/5/002

[3] RAY TRACING NEAR THE ELECTRON-CYCLOTRON FREQUENCY WITH APPLICATION TO EBT [J].