Empirical approximation for the ion current to the surface of a dust grain in a weakly ionized gas-discharge plasma

被引：13
|
作者：
Vaulina, O. S. [1 ]
Repin, A. Yu. [1 ]
Petrov, O. F. [1 ]
机构：
[1] Russian Acad Sci, Inst High Energy Dens, Moscow 125412, Russia
来源：
PLASMA PHYSICS REPORTS | 2006年 / 32卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S1063780X06060055
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 results from numerical simulation of the dust grain charging process in a weakly ionized gasdischarge plasma are analyzed. An empirical approximate formula for the ion current to the grain surface under conditions close to those in laboratory experiments with dusty plasmas is derived. Investigations show that the approximation proposed greatly simplifies determination of the grain charge by avoiding laborious calculations for different grain sizes and different parameters of the surrounding plasma.
引用
收藏
页码：485 / 488
页数：4
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