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Uniformity analysis of nanosecond and sub-nanosecond pulsed DBD in atmospheric air
Journal article   Peer reviewed

Uniformity analysis of nanosecond and sub-nanosecond pulsed DBD in atmospheric air

Chong Liu, Alexander Fridman and Danil Dobrynin
Plasma Research Express, v 1(1), p15007
28 Nov 2018

Abstract

dielectric barrier discharge nanosecond-pulsed air plasma uniformity analysis
In this study we report the results of atmospheric air nanosecond-pulsed dielectric barrier discharge (DBD) uniformity analysis as a function of applied electric field. We quantify the uniformity of the discharge by analyzing the discharge images obtained with fast intensified charge-coupled device camera using chi-square test. The results show that uniformity of DBD strongly depends on applied electric field with a weak effect on the high voltage pulse rise time. The nanosecond-pulsed air DBD operates in two distinct modes, namely, non-uniform streamer regime and uniform 'overvoltage' regime, with transition applied electric field of around 130 kV cm−1.

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