Hits:

Indexed by:期刊论文

Date of Publication:2009-07-01

Journal:PHYSICS OF PLASMAS

Included Journals:EI、SCIE

Volume:16

Issue:7

ISSN No.:1070-664X

Key Words:arcs (electric); argon; corona; glow discharges; plasma density; plasma diagnostics; plasma transport processes

Abstract:An atmospheric-pressure argon discharge plasma column is generated by making use of a single-electrode configuration with the power supply operating at a frequency of 45 kHz. It is observed that corona, glowlike plume, and filamentary discharges evolve individually with increasing applied voltage. It is in the filamentary state with average electron density of order 10(12) cm(-3) that plasma column grows up in the tube with increasing applied voltage. Its discharge characteristics are determined by measuring electrical parameters (voltage, conduction current, and average absorbed power) and optical emission spectroscopy.