Optogalvanic studies in CO2 discharges at low pressures

Singh, Kuldip ; Kartha, V. B. ; D'cunha, R. (1987) Optogalvanic studies in CO2 discharges at low pressures Spectroscopy Letters, 20 (1). pp. 17-23. ISSN 0038-7010

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Related URL: http://dx.doi.org/10.1080/00387018708082272


The optogalvanic effect in Lou pressure CO2 -N2 -He discharges has been studied at different CO laser wavelengths. It was shown, that unlike earlier studies done at higher pressures, a saturation of the optogalvanic signal was observed as pressure was increased from fraction of a torr to values greater than one torr. It was shown that at tow pressure, the temperature perturbation effect alone can not explain the optogalvanic effect. The increased rate of electron-ion and ion-ion recombination processes competed with the temperature effect and this Led to a saturation of the optogalvanic signal.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Ltd.
Keywords:Optogalvanic Effect; CO2; Saturation
ID Code:17880
Deposited On:16 Nov 2010 12:32
Last Modified:03 Jun 2011 11:48

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