Coulomb systems of strongly interacting dust particles: Laboratory and microgravity conditions

被引：1

作者：

Petrov O.F. ^{[1
,2
]}

Vaulina O.S. ^{[1
]}

Vasiliev M.M. ^{[1
]}

Lisin E.A. ^{[1
]}

Myasnikov M.I. ^{[1
]}

Antipov S.N. ^{[1
]}

Chepelev V.M. ^{[1
,2
]}

Koss X.G. ^{[1
]}

Tun Y. ^{[2
]}

Fortov V.E. ^{[1
,2
]}

机构：

[1] Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13, building 2, Moscow

[2] Moscow Institute of Physics and Technology, per. Institutskii 9, Dolgoprudnyi, Moscow Region

来源：

Optoelectronics, Instrumentation and Data Processing | 2014年 / 50卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Brownian motion; cryogenic discharge; dusty plasma; dusty plasma structures; electron beam; microgravity;

D O I：

10.3103/S8756699014050021

中图分类号：

学科分类号：

摘要：

Formation of ordered structures from a large number (∼104) of charged diamagnetic macroparticles in a cusp magnetic trap under microgravity conditions is experimentally studied. The experiments are performed onboard the International Space Station. Dusty plasma structures in a cryogenic d.c. glow discharge (cryogenic dusty plasma) are examined. Ultrahigh charging of dust macroparticles under the action of an electron beam is experimentally obtained and studied. Results of an experimental investigation of various regimes of the Brownian motion of interacting dust particles in the plasma are presented. A method of determining particle interaction forces in nonideal systems with isotropic pair potentials is proposed. The method is based on solving an inverse problem that describes the motion of interacting particles by a system of the Langevin equations and allows reconstruction of parameters of the external confining potential without using a priori information about the friction coefficients of particles. © 2014, Allerton Press, Inc.

引用

页码：442 / 456

页数：14

共 35 条

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