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Abstract
AbstractThermoluminescence (TL) and optical absorption measurements have been carried in γ‐irradiated KCl, KBr and various compositions of KClxBr1–x mixed crystals as a function of irradiation time and composition. The position of the main glow peak (high temperature peak) and F‐band position are found to vary non‐linearly with composition, showing a correlation between colour centers and TL. The TL peaks have been analysed by numerical fitting and the trap depths and frequency factors have been calculated for different compositions of the mixed crystals. The thermal ionisation energy of F‐centers has been calculated for the mixed crystals and it is found to vary non‐linearly with composition. The results obtained in mixed crystals have been discussed in terms of high disorder present in them.
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