Comparative investigations of TL and OSL in KCI:Eu2+ crystals irradiated with UV and X-rays |
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| Authors: | M. Pedroza-Montero B. Castañteda R. Meléndrez V. Chernov M. Barboza-Flores |
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| Affiliation: | 1. Programa de Posgrado en Física de Materiales Centro de Investigación Cientifica y de Educación Superior de Ensenada , P.O. Box 2681, Ensenada, Baja California, 22800, México;2. Centro de Investigación en Física , Universidad de Sonora , Apartado Postal 5-088, Hermosillo, Sonora, 83190, México;3. Programa de Posgrado en Física de Materiales Centro de Investigación Cientifica y de Educación Superior de Ensenada , P.O. Box 2681, Ensenada, Baja California, 22800, México;4. Centro de Investigación en Física , Universidad de Sonora , Apartado Postal 5-088, Hermosillo, Sonora, 83190, México |
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| Abstract: | ![]()
Abstract We present thermoluminescence (TL) glow curves and optical stimulated luminescence (OSL) response from both KCl:Eu2+ crystals irradiated with soft X-rays (20 KV, 80 μA) and ultraviolet light (230 nm). Two situations take place. First, we observed that for long time F-light bleaching (560 nm) the typical TL glow curve of X-rays irradiated KCl:Eu2+ resembles the TL glow curve of UV-irradiated samples. Second, along with OSL measurements, we have performed a thermal bleaching and we have addressed F and Fz participation in OSL. These results provide us a supportable correlation between F and Fz as responsible centers for OSL and TL processes. |
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| Keywords: | F centers Optical stimulated luminescence Alkali halides Defects TL |
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