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Relaxation of a non-equilibrium rotational distribution in HCl

✍ Scribed by L.P. Roodhart; G.H. Wegdam

Publisher: Elsevier Science
Year: 1979
Tongue: English
Weight: 395 KB
Volume: 61
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(79)87147-x

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✦ Synopsis

A mixture of IO% pressure SF6 snd HCI gas is subjected to P( 16)-COz iaser radiation. The ensuing iiuorescent sigafs from the WCI vibration and ground-stste rota?ions axe spectroscopic&y resolved and their tmnsisnt behaviour is measured. The fluorescent sign& are used to monitor the coliisionally induced popuhtion changes in the high rotationa: MeIs of HCI (J = 10-22). The probabilities of collision-induced eneqy transfer between the rotatronal tevels are c&ul~ted on the basis of the exponential gap laa model used by Pohnqi et al. Experiment and theory show the existence of a non-equihbrium state with a double peaked rotational distribution

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