Can Ion-Acoustic Waves in Plasma be Backward Waves?

被引：10
|
作者：
Dubinov, A. E. [1 ]
Kitayev, I. N.
机构：
[1] All Russian Res Inst Expt Phys, Russian Fed Nucl Ctr, Pr Mira 37, Sarov 607188, Nizhny Novgorod, Russia
来源：
PHYSICS OF WAVE PHENOMENA | 2017年 / 25卷 / 02期
关键词：
SHEATH CRITERION; PERFECT LENS;
D O I：
10.3103/S1541308X17020108
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dispersion relation for ion-acoustic waves in plasma with ion flow has been analyzed. It is shown that these wavesmay exist (under certain conditions) in the form of backward waves with antiparallel group and phase velocities. The range of ion flow velocities allowing implementation of backward ion-acoustic waves is found.
引用
收藏
页码：137 / 139
页数：3
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