Destruction rates of metastable helium atoms and molecules in collisions with argon atoms
- 1 February 1978
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 68 (3) , 1185-1189
- https://doi.org/10.1063/1.435808
Abstract
The destruction rates of metastable helium atoms and molecules due to collisions with argon atoms have been determined at 300°K in mixtures of helium (20 to 60 Torr) and argon (10−5 to 10−1 Torr) in a pulsed afterglow. Those rates are (0.7±0.1) ×10−10 cm3 sec−1 and (1.5±0.3) ×10−10 cm3 sec−1 for the metastable atoms and molecules, respectively. In addition it was possible to confirm the value of 29.5 cm2 V sec−1 for the reduced mobility of Ar2+ in He at 20°C.Keywords
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