Diagnosis of the ion density in two discharge modes generated in atmospheric pressure argon with pin-to-plate dielectric barrier geometry

Journal Article · Mon Aug 15 04:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3622632· OSTI ID:22043431

Bing, Qi; Jianjun, Huang; Yunming, Qiu; Ying, Liu; Lijun, Liu ^[1]

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1. Applied Low Temperature Plasma Laboratory, College of Physics Science and Technology, Shenzhen University, Shenzhen 518060 (China)

In this study, the ion densities of an ac dielectric barrier discharge (DBD) (that is, a pin-to-plate DBD) as a function of the applied frequency in argon have been studied by means of the plasma radiation. The pin-to-plate DBD shows the characteristic of radiation oscillations with a low-frequency wave hidden in a high-frequency wave to form a mosaic structure, which reveals the coexistence of two discharge modes in the ac barrier discharge, i.e., the streamer mode and the corona mode. According to the oscillation frequencies, the ion densities are calculated. The results show that the ion density in streamer discharge is higher than that in corona discharge for about 1-2 magnitude orders.

• OSTI ID: 22043431
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 18; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON
ATMOSPHERIC PRESSURE
CORONA DISCHARGES
DIELECTRIC MATERIALS
DIELECTRIC PROPERTIES
ION DENSITY
OSCILLATIONS
PLASMA
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA WAVES
PLATES