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

Journal Article · Thu Jun 15 00:00:00 EDT 2006 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X06060055· OSTI ID:21080601

Vaulina, O S; Repin, A Yu; Petrov, O F ^[1]

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1. Russian Academy of Sciences, Institute for High Energy Densities (Russian Federation)

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.

• OSTI ID: 21080601
• Journal Information: Plasma Physics Reports, Vol. 32, Issue 6; Other Information: DOI: 10.1134/S1063780X06060055; Copyright (c) 2006 Nauka/Interperiodica; Article Copyright (c) 2006 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
APPROXIMATIONS
CURRENTS
DUSTS
GRAIN SIZE
IONS
PLASMA
SIMULATION
SURFACES