Breakdown threshold in the microwave field at low and high pressures in electronegative gas mixtures

The dependence of the critical value of the microwave field amplitude in electronegative mixtures, which corresponds to the local equality of the ionization frequency and the dissociation attachment frequency, is investigated theoretically in a wide range of pressures with allowance for electron tem...

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Bibliographic Details
Published in:Technical physics 2013-02, Vol.58 (2), p.294-297
Main Author: Khodataev, K. V.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Electrons
Ionization
Physics
Physics and Astronomy
Short Communications
Toy industry
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Summary:The dependence of the critical value of the microwave field amplitude in electronegative mixtures, which corresponds to the local equality of the ionization frequency and the dissociation attachment frequency, is investigated theoretically in a wide range of pressures with allowance for electron temperature pulsations. The resultant values are compared with the critical value for the static field. The range of pressures in which electron temperature pulsations become significant is determined, and the excess of the critical amplitude over the value in the static field is calculated in the high-pressure limit. Simple formulas are recommended for estimating the critical value of the microwave field amplitude.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784213020126