Dust-acoustic instability in an inductive gas-discharge plasma

被引：29

作者：

Zobnin, AV ^{[1
]}

Usachev, AD ^{[1
]}

Petrov, OF ^{[1
]}

Fortov, VE ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Temp, Inst High Energy Dens, IVTAN, Moscow 127412, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2002年 / 95卷 / 03期

关键词：

D O I：

10.1134/1.1513815

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spontaneous excitation of a dust-particle density wave is observed in a dust cloud levitating in the region of the diffused edge of an rf inductive low-pressure gas-discharge plasma. The main physical parameters of this wave and of the background plasma are measured. The analytic model proposed for the observed phenomenon is based on the theory of dust sound and successfully correlates with experimental data in a wide range of experimental conditions. The effect of variable charge of dust particles on the evolution of the observed dust-plasma instability is studied analytically. It is shown that the necessary condition for the development of the dust-acoustic instability is the presence of a dc electric field in the dust cloud region. (C) 2002 MAIK "Nauka/Interperiodica".

引用

页码：429 / 439

页数：11

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