Abstract

Cathodoluminescence and photoluminescence efficiencies of powdered uranium glasses were measured. Absolute radiant exitance spectra of the glasses were determined during excitation with 100–350 keV electrons and with 253.7 nm light. The spectra are the same for both excitation processes. The glasses luminesce over the wavelength range 470–630 nm. Maxima occur at 518, 534, and 563 nm. The most efficient glass in the series had the composition, by weight percent, 29.40 B2O3, 58.80 SiO2, 9.80 Na2O, and 2.00 UO2. Powders of 8.6 and 4.6 μm particle sizes of the glass have cathodoluminescence efficiencies of (1.1±0.1)% for electrons with 100–350 keV energies. The photoluminescence radiant efficiency is (12±1)%.

© 1974 Optical Society of America

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