Analytical Calculation of Gas Temperature and Experimental Determination of Electron Temperature in Gas Discharge in Ne–He Mixtures

Author

Temelkov, Krassimir A. ; Slaveeva, Stefka I. ; Vuchkov, Nikolay K.

Author_Institution

Metal Vapor Lasers Lab., Bulgarian Acad. of Sci., Sofia, Bulgaria

Volume

39

Issue

3

fYear

2011

fDate

3/1/2011 12:00:00 AM

Firstpage

831

Lastpage

835

Abstract

Thermal conductivities of binary gas systems are calculated on the basis of existing experimental data and of 12-6 Lennard-Jones and rigid-sphere interatomic interaction approximations for the case of gas discharge in Ne-He mixtures. Assuming that the gas temperature varies only in the radial direction and using the calculated thermal conductivities, an analytical solution of the steady-state heat conduction equation is found for uniform power input. Two cases are considered: taking or not taking into account the radiance of a ceramic tube insert. Measurement of the relative intensities of some He and Ne spectral lines, originating from different upper levels, has enabled us to determine the average electron temperature, using a line-ratio method of optical emission spectroscopy.

Keywords

discharges (electric); gas mixtures; helium; neon; plasma diagnostics; plasma temperature; plasma transport processes; Lennard-Jones interatomic interaction; Ne-He; Ne-He mixture; ceramic tube; electron temperature; gas discharge; gas temperature; line-ratio method; optical emission spectroscopy; rigid-sphere interatomic interaction; spectral lines; steady-state heat conduction equation; thermal conductivity; Discharges; Electron tubes; Gas lasers; Plasma temperature; Temperature distribution; Temperature measurement; Gas and electron temperatures; gas discharge; heat conduction; optical emission spectroscopy;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2010.2102368

Filename

5710587