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Title: Charged dust particles in an RF and UV-driven plasma

Abstract

Dust particles in a radio-frequency discharge generally obtain a negative charge due to the high mobility of the electrons compared to that of the positive ions. When a sufficiently intense flux of photons in the UV range is present, however, the dust charge will be less negative due to photodetachment. The resulting charge distribution will depend on the competition between collection of electrons and ions from the plasma and the detachment by photons. In this paper we study the influence of photodetachment on the charge of dustparticles suspended in a radio-frequency discharge, as well as its influence on the electron energy distribution function and the electron and ion density profiles. An existing Particle-In-Cell code has been modified to include the photodetachment process.

Authors:
;  [1]
  1. FOM Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands)
Publication Date:
OSTI Identifier:
20726802
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 799; Journal Issue: 1; Conference: 4. international conference on the physics of dusty plasmas, Orleans (France), 13-17 Jun 2005; Other Information: DOI: 10.1063/1.2134651; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CATIONS; CHARGE DISTRIBUTION; DUSTS; ELECTRON MOBILITY; ELECTRONS; ENERGY SPECTRA; HIGH-FREQUENCY DISCHARGES; ION DENSITY; PARTICLES; PHOTONS; PLASMA; PLASMA SIMULATION; RADIOWAVE RADIATION; ULTRAVIOLET RADIATION

Citation Formats

Land, V., and Goedheer, W.J.. Charged dust particles in an RF and UV-driven plasma. United States: N. p., 2005. Web. doi:10.1063/1.2134651.
Land, V., & Goedheer, W.J.. Charged dust particles in an RF and UV-driven plasma. United States. doi:10.1063/1.2134651.
Land, V., and Goedheer, W.J.. Mon . "Charged dust particles in an RF and UV-driven plasma". United States. doi:10.1063/1.2134651.
@article{osti_20726802,
title = {Charged dust particles in an RF and UV-driven plasma},
author = {Land, V. and Goedheer, W.J.},
abstractNote = {Dust particles in a radio-frequency discharge generally obtain a negative charge due to the high mobility of the electrons compared to that of the positive ions. When a sufficiently intense flux of photons in the UV range is present, however, the dust charge will be less negative due to photodetachment. The resulting charge distribution will depend on the competition between collection of electrons and ions from the plasma and the detachment by photons. In this paper we study the influence of photodetachment on the charge of dustparticles suspended in a radio-frequency discharge, as well as its influence on the electron energy distribution function and the electron and ion density profiles. An existing Particle-In-Cell code has been modified to include the photodetachment process.},
doi = {10.1063/1.2134651},
journal = {AIP Conference Proceedings},
number = 1,
volume = 799,
place = {United States},
year = {Mon Oct 31 00:00:00 EST 2005},
month = {Mon Oct 31 00:00:00 EST 2005}
}
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