Measurements of water molecule isotopomer concentrations in a discharge of inert gas with addition of H{sub 2}O and D{sub 2} vapours by the method of external-cavity diode laser spectroscopy
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
Discharge plasma in inert gases with added water vapours and deuterium is studied by using the optimised diode laser spectroscopy with an external cavity. Formation of a spectrally dense grid of cavity transverse mode eigenfrequencies allows one to determine the parameters of Doppler broadening for absorption lines, a kinetic temperature of molecules, and their statistical sums. By using these parameters and the value of an absorption coefficient, correlations of concentrations are found for H{sub 2}O and HDO isotopomers at various ratios of plasma-forming gas components. An important contribution of initial gas molecules adsorbed on walls into the formation of plasma composition is stressed. It is found that the ratio of H{sub 2}O and HDO concentrations is the same at various ratios of H{sub 2}O and D{sub 2} concentrations in plasma-forming gases and is constant during the discharge burning process. (laser applications and other topics in quantum electronics)
- OSTI ID:
- 23004875
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 2 Vol. 49; ISSN 1063-7818; ISSN QUELEZ
- Country of Publication:
- United States
- Language:
- English
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