skip to main content

Title: Measurement of ion density in an atmospheric pressure argon with pin-to-plate dielectric barrier discharge by resonance of plasma radiation

The measurements of the ion densities in the atmospheric AC barrier corona argon discharge are carried out by receiving and analyzing the frequencies of the electromagnetic radiation emitted from the plasma. An auxiliary excitation source composed of a pin-to-pin discharge system is introduced to excite the oscillations of the main discharge. To analyze the resonance mechanism, a complemented model based on a one-dimensional description of forced vibrations is given. Calculations indicate that Ar{sub 2}{sup +} is the dominant ion (∼89% in number density). By analyzing resonance frequencies, the ion densities of Ar{sub 2}{sup +} are in the order of 10{sup 19}∼10{sup 20}m{sup −3} and increase slowly as the applied voltage increases.
Authors:
; ; ; ;  [1]
  1. Applied Low Temperature Plasma Laboratory, School of Physics, Shenzhen University, Shenzhen 518060 (China)
Publication Date:
OSTI Identifier:
22407944
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 12; Other Information: (c) 2014 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; ARGON IONS; ATMOSPHERIC PRESSURE; CORONA DISCHARGES; DIELECTRIC MATERIALS; ELECTRIC POTENTIAL; ELECTROMAGNETIC RADIATION; EXCITATION; ION DENSITY; ONE-DIMENSIONAL CALCULATIONS; OSCILLATIONS; PHOTON EMISSION; PLASMA