Abstract
The time dependence of luminescence in liquid argon and xenon has been studied for electron, -particle, and fission-fragment excitation. The lifetimes of low excited molecular states ( and ) do not depend on the density of excited species while the intensity ratio of to is found to be larger at higher deposited energy density. The lifetimes obtained for the and states are 7.0 ± 1.0 nsec and 1.6 ± 0.1 μsec, respectively, in liquid argon, and 4.3 ± 0.6 and 22.0 ± 2.0 nsec, respectively, in liquid xenon. The mechanism of quenching of luminescence at a high density of excited species in liquid argon and xenon is discussed.
- Received 25 June 1982
DOI:https://doi.org/10.1103/PhysRevB.27.5279
©1983 American Physical Society