Progress in Plasma Processing of Materials, 2001

ISBN Print: 1-56700-165-3

GAS TEMPERATURE IN CONTRACTED ATMOSPHERIC PRESSURE DISCHARGES SUSTAINED IN CYLINDRICAL TUBES BY MICROWAVES AT 2450 MHZ

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DOI: 10.1615/ITPPC-2000.100
pages 69-74

Y. Kabouzi Groupe de physique des plasmas, Universite de Montreal, Montreal H3C 3J7, Quebec

M. D. Calzada Departemento de Fisica, Universidad de Cordoba, 14071-Cordoba, Spain

Michel Moisan Groupe de physique des plasmas, Universite de Montreal, BP 6128, succursale Centre-ville, Montreal H3C 3J7, Quebec, Canada

C. Trassy UPR 9033 CNRS - EPM, ENSHMG BP 95 - 38402 Saint-Martin-d'Heres - France

Résumé

Emission spectroscopy has been used to carry out temperature measurements on atmospheric pressure surface-wave sustained plasmas in argon and neon gases. OH molecular spectra and atomic spectral line profiles were employed to determine the discharge rotational and translational temperatures, respectively. The rotational temperature (Trot) is found to be lower than the translational temperature (Tg). Although radial constriction of the discharge is higher in argon than in neon, we found Tg(neon) ~ Tg(argon) and Trot(neon) ~ Trot(argon).

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