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Number of results
2010 | 117 | 5 | 752-755
Article title

Breakdown Phenomena in Water Vapor Microdischarges

Content
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Languages of publication
EN
Abstracts
EN
The gas breakdown at the large gap sizes is reasonably well understood. However, the breakdown phenomenon in microgaps is still not sufficiently explored. The high electric fields realized in small gaps combined with the lowering of the potential barrier, seen by the electrons in the cathode as ion approaches lead to ion-enhanced field emission leading to deviations from the standard Paschen law. In this paper, semi-empirical expressions for the breakdown voltage based on the fitting of numerical solutions of the DC breakdown criteria in microdsicharges have been derived. In the standard breakdown criteria the secondary emission coefficient that incorporates the enhancement of the secondary electron emission has been included. The obtained expressions can be used for determination the pressure and the gap dependence of the breakdown field strength in the water vapor, separately.
Keywords
EN
Year
Volume
117
Issue
5
Pages
752-755
Physical description
Dates
published
2010-05
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv117n506kz
Identifiers
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