The effect of the ambient plasma conditions on the variation of charge on dust grains

被引：14

作者：

Chakraborty, M ^{[1
]}

Kausik, SS ^{[1
]}

Saikia, BK ^{[1
]}

Kakati, M ^{[1
]}

Bujarbarua, S ^{[1
]}

机构：

[1] Ctr Plasma Phys Dispur, Gauhati 781006, India

来源：

PHYSICS OF PLASMAS | 2003年 / 10卷 / 02期

关键词：

D O I：

10.1063/1.1531179

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：

An experimental study has been performed into the variation of charge on dust grains with change in the ambient plasma conditons. A dust beam containing submicron sized silver grains was passed through plasma. The dust grains were charged by the plasma particles as well as by primary electrons from the filament. An increase in the filament current increased both the plasma density and the number density of the primary electrons. The grain charge was found out both from the deflection of the dust grains and also from the floating potential. The experimental observations shows that the secondary emission caused by the primary electrons significantly influenced and played a prominent role in the establishment of charge on the grains. (C) 2003 American Institute of Physics.

引用

页码：554 / 557

页数：4

共 22 条

[1] CHARGING OF DUST GRAINS IN A PLASMA [J].