Evolution of Dust Clouds in Afterglow Plasmas

被引：11

作者：

Meyer, John K. ^{[1
]}

Merlino, Robert L. ^{[1
]}

机构：

[1] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2016年 / 44卷 / 04期

关键词：

Coulomb explosion; Coulomb fission; dusty plasma; COULOMB EXPLOSION; FINITE SYSTEMS; FISSION;

D O I：

10.1109/TPS.2015.2504920

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 observations of the evolution of dust clouds in afterglow plasmas at various neutral pressures are presented. Four cases were studied which showed a large variation in the cloud dynamics. In two cases, the clouds responded by rapidly shedding an outer layer of dust. In another case, the entire cloud exhibited a nearly uniform expansion-Coulomb explosion. In perhaps the most exotic case, the cloud splits into two clouds-Coulomb fission. The results for the case of the Coulomb expansion were compared with a theoretical model that included the effects of neutral drag.

引用

页码：473 / 478

页数：6

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