skip to main content

SciTech ConnectSciTech Connect

Title: Plasma characteristics of argon glow discharge produced by AC power supply operating at low frequencies

Non-thermal properties of Argon glow discharge operating with various operating pressures were measured and presented in this work. The Argon plasma is produced by a parallel conducting electrodes coupling with a high voltage AC power supply. The power supply can generate high AC voltage at various frequencies. The frequencies for the operation are in the range of a few kHz. The system is capable of generating electric field between the two metal electrodes discharge system. The characteristics of plasma produced were measured by optical emission spectroscopy (OES) technique where electron temperature (T{sub e}) and electron number density (n{sub e}) can be determined by line intensity ratio method. The value of electron number density was then determined from the Saha-Eggert equation. Our results show that the electron number density of the discharge obtained is of the order of 10{sup −17} − 10{sup −18} m{sup −3} where the electron temperature is between 1.00−2.00 eV for various operating frequencies used which are in good agreement with similar results published earlier.
Authors:
;  [1] ;  [2]
  1. Department of Physics, Facuty of Science, Chulalongkorn University, Bangkok (Thailand)
  2. (Thailand)
Publication Date:
OSTI Identifier:
22391558
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1657; Journal Issue: 1; Conference: PERFIK 2014: National Physics Conference 2014, Kuala Lumpur (Malaysia), 18-19 Nov 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ARGON; COUPLING; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ELECTRODES; ELECTRON DENSITY; ELECTRON TEMPERATURE; ELECTRONS; EMISSION SPECTROSCOPY; EV RANGE; GLOW DISCHARGES; KHZ RANGE; PLASMA; PLASMA DIAGNOSTICS; PLASMA PRODUCTION; THERMODYNAMIC PROPERTIES