Determination of gas temperature of high-frequency low-temperature electrodeless plasma using molecular spectra of hydrogen and hydroxyl-radical

Z. Gavare; A. Svagere; M. Zinge; G. Revalde; V. Fyodorov

doi:10.1016/j.jqsrt.2012.04.022

Determination of gas temperature of high-frequency low-temperature electrodeless plasma using molecular spectra of hydrogen and hydroxyl-radical

Journal of Quantitative Spectroscopy and Radiative Transfer ◽

10.1016/j.jqsrt.2012.04.022 ◽

2012 ◽

Vol 113 (13) ◽

pp. 1676-1682 ◽

Cited By ~ 5

Author(s):

Z. Gavare ◽

A. Svagere ◽

M. Zinge ◽

G. Revalde ◽

V. Fyodorov

Keyword(s):

Low Temperature ◽

Hydroxyl Radical ◽

High Frequency ◽

Molecular Spectra ◽

Gas Temperature

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Plasma Temperature Determination of Hydrogen Containing High-Frequency Electrodeless Lamps by Intensity Distribution Measurements of Hydrogen Molecular Band

International Journal of Spectroscopy ◽

10.1155/2010/804506 ◽

2010 ◽

Vol 2010 ◽

pp. 1-8 ◽

Cited By ~ 3

Author(s):

Zanda Gavare ◽

Gita Revalde ◽

Atis Skudra

Keyword(s):

Intensity Distribution ◽

High Frequency ◽

Plasma Temperature ◽

Gas Temperature ◽

Applied Current ◽

Temperature Determination ◽

Diagonal Band ◽

Gas Temperature Determination ◽

Good Agreement

The goal of the present work was the investigation of the possibility to use intensity distribution of the Q-branch lines of the hydrogen Fulcher-α diagonal band (d3Πu−→a3∑g+ electronic transition; Q-branch with v=v′=2) to determine the temperature of hydrogen containing high-frequency electrodeless lamps (HFEDLs). The values of the rotational temperatures have been obtained from the relative intensity distributions for hydrogen-helium and hydrogen-argon HFEDLs depending on the applied current. The results have been compared with the method of temperature derivation from Doppler profiles of He 667.8 nm and Ar 772.4 nm lines. The results of both methods are in good agreement, showing that the method of gas temperature determination from the intensity distribution in the hydrogen Fulcher-α (2-2)Q band can be used for the hydrogen containing HFEDLs. It was observed that the admixture of 10% hydrogen in the argon HFEDLs significantly reduces the gas temperature.

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