Charged electret deposition for the manipulation of high power microwave flashover delay times

A quasi-permanent charged electret is embedded into the radiation window of a high power microwave system. It was experimentally observed that the additional electrostatic field introduced by the electret alters the delay times associated with the development of plasma at the window surface, resulti...

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Bibliographic Details
Published in:Physics of plasmas 2012-11, Vol.19 (11)
Main Authors: Stephens, J., Beeson, S., Dickens, J., Neuber, A.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Charging
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Delay
DEPOSITION
Electrets
Electrostatic fields
EXCITATION
FLASHOVER
HIGH-FREQUENCY DISCHARGES
Mathematical analysis
MICROWAVE RADIATION
Microwaves
PLASMA
Plasmas
SURFACES
TIME DELAY
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Summary:A quasi-permanent charged electret is embedded into the radiation window of a high power microwave system. It was experimentally observed that the additional electrostatic field introduced by the electret alters the delay times associated with the development of plasma at the window surface, resulting from high power microwave excitation. The magnitudes of both the statistical and formative delay times are investigated in detail for different pressures. Experimental observations are related to calculated discharge parameters using known E/p dependent properties.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4767649