Low power microwave conductivity of atmospheric pressure plasma

Air, He, and Ar plasmas are analyzed at different pressures between 10 2 -10 5 Pa. COMSOL simulation is used to approximate the value of plasma conductivity. Electron density is calculated for a scattering time tau of about 10 -11 s, which is very close to the critical density, for which plasma freq...

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Bibliographic Details
Published in2008 IEEE 35th International Conference on Plasma Science p. 1
Main Authors Porteanu, H.-E., Kuhn, S., Gesche, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2008
Subjects
Conductivity
Plasmas
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Summary:Air, He, and Ar plasmas are analyzed at different pressures between 10 2 -10 5 Pa. COMSOL simulation is used to approximate the value of plasma conductivity. Electron density is calculated for a scattering time tau of about 10 -11 s, which is very close to the critical density, for which plasma frequency equals the microwave frequency. This might explain the sign change of the imaginary part of conductivity.
ISBN:1424419298
9781424419296
ISSN:0730-9244
2576-7208
DOI:10.1109/PLASMA.2008.4591171