skip to main content

SciTech ConnectSciTech Connect

Title: Cathode fall measurement in a dielectric barrier discharge in helium

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.
Authors:
; ;  [1]
  1. School of Electric Power, South China University of Technology, Guangzhou 510640 (China)
Publication Date:
OSTI Identifier:
22218463
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 11; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; APPROXIMATIONS; CATHODES; DIELECTRIC MATERIALS; ELECTRIC FIELDS; ELECTRIC POTENTIAL; EXTRAPOLATION; GLOW DISCHARGES; HELIUM; PLASMA; PLASMA DIAGNOSTICS; SPATIAL DISTRIBUTION