PARAMETRIC DECAY OF MAGNETOACOUSTIC OSCILLATIONS IN A CYLINDRICAL PLASMA

被引:9
作者
CRAMER, NF [1 ]
SY, WNC [1 ]
机构
[1] AUSTRALIAN NATL UNIV,RES SCH PHYS SCI,CANBERRA 2600,ACT,AUSTRALIA
关键词
D O I
10.1017/S0022377800010308
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
Parametric decay of magneto-acoustic oscillations in a cylindrical plasma column is considered, including the Hall effect and the effects of finite resistivity. Growth rates for axisymmetric modes in decay instabilities are derived and applied to the problems of parametric excitation of Alfve'n waves and supplementary heating of plasmas. It is shown that both the slow (ion cyclotron) and fast (compressional) modes may be parametrically excited. The threshold amplitudes for nonlinear dissipation of pump field energy are calculated and briefly discussed. © 1979, Cambridge University Press. All rights reserved.
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页码:549 / 562
页数:14
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