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Issue 11, 2006
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A new, versatile, direct-current helium atmospheric-pressure glow discharge

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Abstract

A novel direct current glow discharge sustained in helium at atmospheric pressure has been developed. Current–voltage behavior and spectroscopic characteristics strongly suggest that the system operates in the glow regime, in spite of the high pressure. The diffuse and extremely stable discharge is typically operated within a voltage range of 300–900 volts (in the current-controlled mode) and at currents ranging over tens to hundreds of milliamps. Spatially resolved spectroscopic measurements of some selected species are presented. Rotational temperature profiles were calculated using the OH emission spectrum, yielding values in the positive column ranging from 1300 to 1600 K.

Graphical abstract: A new, versatile, direct-current helium atmospheric-pressure glow discharge

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Article information


Submitted
30 May 2006
Accepted
19 Sep 2006
First published
05 Oct 2006

J. Anal. At. Spectrom., 2006,21, 1175-1184
Article type
Paper

A new, versatile, direct-current helium atmospheric-pressure glow discharge

F. J. Andrade, W. C. Wetzel, G. C.-Y. Chan, M. R. Webb, G. Gamez, S. J. Ray and G. M. Hieftje, J. Anal. At. Spectrom., 2006, 21, 1175
DOI: 10.1039/B607544D

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