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Analysis of two-dimensional microdischarge distribution in dielectric-barrier discharges

A Chirokov1, A Gutsol1, A Fridman1, K D Sieber2, J M Grace2 and K S Robinson2

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The two-dimensional spatial distribution of microdischarges in atmospheric pressure dielectric-barrier discharges (DBDs) in air was studied. Experimental images of DBDs (Lichtenberg figures) were obtained using photostimulable phosphors. The storage phosphor imaging method takes advantage of the linear response of the phosphor for characterization of microdischarge intensity and position. A microdischarge interaction model in DBDs is proposed and a Monte Carlo simulation of microdischarge interactions in the discharge is presented. Comparison of modelled and experimental images indicates interactions and short-range structuring of microdischarge channels.


PACS

52.65.Pp Monte Carlo methods

52.80.-s Electric discharges

Subjects

Plasma physics

Dates

Issue 4 (November 2004)

Received 2 April 2004

Published 5 October 2004



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