Ionization instability in dusty plasmas

被引：53

作者：

DAngelo, N

机构：

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

来源：

PHYSICS OF PLASMAS | 1997年 / 4卷 / 09期

关键词：

D O I：

10.1063/1.872484

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：

The ionization instability in a dusty plasma in which the neutral gas is ionized by a constant flux of energetic electrons with energy slightly above the ionization energy is examined by using fluid equations for the three charged components, namely positive ions, electrons, and negatively charged dust grains. The presence of negatively charged dust increases both the frequency and the growth rate of the IA (ion-acoustic) wave excited through the ionization instability. The DA (dust-acoustic) mode, even in the absence of ion-neutral collisions, ion viscosity, and neutral gas drag on the dust grains, is always damped within the parameter ranges explored here and relevant to laboratory plasmas. The present results on the DA wave excitation are at variance with results obtained by Shukla and Morfill [Phys. Lett. A 216, 153 (1996)]. (C) 1997 American Institute of Physics.

引用

页码：3422 / 3426

页数：5

共 14 条

[1]

Baines M. J., 1965, Mon. Not. R. Astron. Soc., V130, P63, DOI [10.1093/mnras/130.1.63, DOI 10.1093/MNRAS/130.1.63]

[2] LABORATORY EXPERIMENTS ON ELECTROSTATIC ION-CYCLOTRON WAVES IN A DUSTY PLASMA [J].