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Kinetic theory of electromagnetic instabilities in weakly ionized neon plasma with inelastic collisions

Published online by Cambridge University Press:  13 March 2009

V. J. Žigman  and
B. S. Milić
V. J. Žigman
Affiliation:
Institute of Physics, Faculty of Natural and Mathematical Sciences, Belgrade, Yugoslavia
B. S. Milić
Affiliation:
Institute of Physics, Faculty of Natural and Mathematical Sciences, Belgrade, Yugoslavia
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Abstract

The spectra and the instability criteria for the two electromagnetic wave modes previously found to exist in weakly ionized plasmas placed in an external d.c. electric field are analysed here for neon plasma for a wide range of the parameter Eo/nn. The presence of electron-atom inelastic collisions is taken into account, assuming that the electron temperature is in the range where these collisions dominantly result in atomic excitations. The linearized kinetic equations are used in combination with a previously evaluated non-Maxwellian electron steady-state distribution function appropriate for the situation in which collisional excitations are significant. For any given ratio of electron drift to thermal velocity, the wavelengths and the angles of propagation at which the instabilities are predicted to set in are determined.

Type
Research Article
Information
Journal of Plasma Physics , Volume 32 , Issue 3 , December 1984 , pp. 359 - 368
Copyright
Copyright © Cambridge University Press 1984

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