TITLE

Cathode fall measurement in a dielectric barrier discharge in helium

AUTHOR(S)
Hao, Yanpeng; Zheng, Bin; Liu, Yaoge
PUB. DATE
November 2013
SOURCE
Physics of Plasmas;Nov2013, Vol. 20 Issue 11, p113510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A method based on the 'zero-length voltage' extrapolation is proposed to measure cathode fall in a dielectric barrier discharge. Starting, stable, and discharge-maintaining voltages were measured to obtain the extrapolation zero-length voltage. Under our experimental conditions, the 'zero-length voltage' gave a cathode fall of about 185 V. Based on the known thickness of the cathode fall region, the spatial distribution of the electric field strength in dielectric barrier discharge in atmospheric helium is determined. The strong cathode fall with a maximum field value of approximately 9.25 kV/cm was typical for the glow mode of the discharge.
ACCESSION #
92659549

 

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