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Hydrogen and Helium Pressure Broadening of H2S Between 2 and 600 K

✍ Scribed by D.C. Flatin; J.J. Holton; M.M. Beaky; T.M. Goyette; F.C. Delucia

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 352 KB
Volume: 164
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1994.1086

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✦ Synopsis

The hydrogen (\left(\mathrm{H}{2}\right)) and helium ( He) pressure-broadening cross sections of the (\mathrm{I}{10} \leftarrow \mathrm{I}{01}) transition of (\mathrm{H}{2} \mathrm{~S}) have been measured between 2 and (600 \mathrm{~K}). This more than two decade range in temperature makes possible the consideration of these collisions as a spectroscopic process in which the translational energy plays the role of the spectroscopic variable. Although in the semiclassical region the pressure broadening due to (\mathrm{H}{2}) and (\mathrm{He}) is similar, at low temperature large qualitative differences occur. resulting in almost an order of magnitude larger cross section for collisions with (\mathrm{H}{2}) below (10 \mathrm{~K}). ac. 1994 Academic Press. Inc.

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