Charge and structures of dust particles in a gas discharge at cryogenic temperatures

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776108040237· OSTI ID:21242021

Antipov, S N; Asinovskii, E I; Kirillin, A V ^[1]; Markovets, V V; Petrov, O F; Fortov, V E ^[1]

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1. Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation)

A dusty plasma in a dc gas discharge is considered at low (cryogenic) temperatures of the gas. The formation of dusty plasma structures consisting of monodisperse poly(styrene) particles (d = 5.44 {mu}m) in a dc glow discharge is experimentally investigated at cryogenic temperatures in the range from 4.2 to 77 K, and the results obtained are presented. The ion velocity distribution function and the charging of dust particles at cryogenic temperatures are calculated using the molecular dynamics method. The primary attention is focused on the correct inclusion of ion-atom collisions in the analysis. This is essential to the understanding of the main mechanisms of the experimentally observed increase in the density of dust particles with decreasing temperature of the gas in the discharge.

• OSTI ID: 21242021
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 106, Issue 4; Other Information: DOI: 10.1134/S1063776108040237; Copyright (c) 2008 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTRIBUTION FUNCTIONS
DUSTS
GLOW DISCHARGES
ION-ATOM COLLISIONS
IONS
MOLECULAR DYNAMICS METHOD
PARTICLES
PLASMA
POLYSTYRENE