COUPLED ALFVEN WAVES IN A QUADRUPOLE MAGNETIC-FIELD AND MODE CONVERSION

被引：17

作者：

HOJO, H

INUTAKE, M

ICHIMURA, M

KIMURA, Y

MIYOSHI, S

机构：

[1] Plasma Research Center, University of Tsukuba

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.66.1866

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coupled Alfven waves propagating along a quadrupole magnetic field are studied. It is shown analytically that slow and fast Alfven waves mode couple due to the spatial modulation of the quadrupole magnetic field, and one Alfven mode can convert to another one. The process is analogous to a resonant parametric mode coupling. The coupling coefficient depends on the ellipticity of the flux surface and vanishes when the magnetic field is axisymmetric.

引用

页码：1866 / 1869

页数：4

共 6 条

[1] CONVERSION OF COMPRESSIONAL ALFVEN WAVES INTO ION-CYCLOTRON WAVES IN INHOMOGENEOUS MAGNETIC-FIELDS [J].