Decay times of the intrinsic luminescence band (1750 Å) of solid Xe

Thin films of solid xenon have been excited by a pulsed electron beam with electron energies of 300 eV and pulse lengths down to 5 nsec at low current. For the main luminescence band of solid xenon (λ ≈ 1750 Å) two decay times have been observed. The short decay time (3 ± 1 nsec) is independent of temperature between 4 K and 30 K, whereas the long decay time decreases from 900 ± 50 nsec at 4 K to 150 ± 50 nsec at 30 K.