The extraordinary wave excitation in microwave gas breakdown in the adiabatic approximation

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2988334· OSTI ID:21269079

Ghorbanalilu, M ^[1]; Shokri, B ^[2]

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1. Department of Physics, Azarbaijan University, Tarbiat Moallem, Tabriz (Iran, Islamic Republic of)
2. Shahid Beheshti University, G. C., Physics Department and Laser-Plasma Research Institute, Evin, Tehran (Iran, Islamic Republic of)

Making use of the electron distribution function formed in the interaction of high-frequency microwave (MW) pulsed fields with a rarefied neutral gas [M. Ghorbanalilu, Phys. Plasmas. 13, 102110 (2006)], the dielectric permittivity tensor of the produced plasma is derived under the condition that the ions are cold and nonmagnetized. According to the adiabatic approximation and using the dielectric permittivity tensor elements the dispersion relations for ordinary and extraordinary excited waves are found. The numerical solution of the dispersion relation shows that the extraordinary modes are unstable in such a nonequilibrium system. These modes are generated in a wide range of wavelengths by tuning the MW field amplitude and magnetic field strength.

• OSTI ID: 21269079
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 9 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ADIABATIC APPROXIMATION
BREAKDOWN
DISPERSION RELATIONS
DISTRIBUTION FUNCTIONS
ELECTRONS
EXCITATION
GASES
MICROWAVE RADIATION
NUMERICAL SOLUTION
PERMITTIVITY
PLASMA PRODUCTION
PLASMA WAVES