Abstract
Thermoluminescence curves of KI, KI: Tl, NaBr: Tl, KBr, KBr: Tl, NaI, NaF, and LiCl have been recorded after exciting the samples with low-energy cathode rays at liquid oxygen temperature. By using suitable filters and photomultiplier tubes, the thermoluminescence was recorded for different spectral regions and it was found that the high-temperature peaks are rich in ultraviolet emissions. The dependence of thermoluminescence on thermal treatment of the sample has been studied for KI. The changes in the absorption bands of some of the color centers, during thermoluminescence, have been investigated by simultaneously measuring diffuse reflectance. It has been found that glow peaks are accompanied by changes in color centers.
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