ION-ACOUSTIC-WAVES IN A PLASMA WITH NEGATIVE-IONS

被引：113

作者：

SONG, B

DANGELO, N

MERLINO, RL

机构：

[1] Department of Physics and Astronomy, University of Iowa, Iowa City

来源：

PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1991年 / 3卷 / 02期

关键词：

D O I：

10.1063/1.859736

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：

Propagation and damping of ion-acoustic waves have been investigated in a Q-machine plasma consisting of K+ positive ions, SF-6 negative ions, and electrons. The phase velocity of the ion-acoustic "fast" mode increases with increasing epsilon, the concentration of negative ions. The wave damping decreases with increasing epsilon, and nearly disappears, for the highest wave frequencies investigated, when epsilon-approximately-greater-than 0.9. Both results are in agreement with predictions from Vlasov theory.

引用

页码：284 / 287

页数：4

共 11 条

[1] NEGATIVE IONS IN NIGHT IONOSPHERE AND CONTINOUOUS SUB-ELF EMISSIONS [J].