The variable temperature pressure broadening and line shift of CO and HDO in collision with helium

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:437260

Beaky, M M; Goyette, T M; De Lucia, F C ^[1]

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1. Ohio State Univ., Columbus, OH (United States)

Pressure broadening and line shift cross sections for the 1{l_arrow}0 and 2{l_arrow}1 rotational transitions of carbon monoxide (CO) in collision with Helium (He) have been measured between 1 and 600 K. Measurements below 30 K were made using the collisional cooling technique, while measurements at higher temperatures were made in an equilibrium cell. The experimental apparatus and techniques employed in the study are described. The data are compared with theoretical predictions, and the significant differences between predictions based on the best available potential energy surface and the experimental results are discussed. Recent studies of the pressure broadening and line shifting of the 1{sub 10}{l_arrow}1{sub 11} rotational transition of deuterated water (HDO) in collision with He will also be presented.

• OSTI ID: 437260
• Report Number(s): CONF-9606118--
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
ATOM-MOLECULE COLLISIONS
CARBON MONOXIDE
HEAVY WATER
HELIUM
MATHEMATICAL MODELS
POTENTIAL ENERGY
ROTATIONAL STATES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K