Dependence of the dust-particle charge on its size in a glow-discharge plasma

被引：109

作者：

Fortov, VE ^{[1
]}

Nefedov, AP ^{[1
]}

Molotkov, VI ^{[1
]}

Poustylnik, MY ^{[1
]}

Torchinsky, VM ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.87.205002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of the charge of dust grains have been performed in a quasineutral plasma over a wide range of grain sizes. A new method was established for measuring the charge on grains levitating in the striations of a de glow discharge, A single dust particle is moved out of a dust cloud with the help of a focused laser beam. When it leaves the beam it returns back to the cloud, and the charge on the grain is derived from the analysis of the returning trajectory. The obtained dependence of the dust-grain charge on its size was found to be strongly nonlinear in the experimental conditions.

引用

页码：205002 / 1

页数：4

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