Phosphorescence of CaF2-Dy crystals |
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Authors: | V. V. Pologrudov I. V. Grigorov |
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Affiliation: | (1) Irkutsk State University, ul. Lermontova 126, Irkutsk, 664003, Russia |
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Abstract: | The decay kinetics of phosphorescence excited by x-rays in a CaF2-Dy crystal is investigated. It is found that localized charge carriers recombine through tunneling. The conclusion is drawn that, in the initial stages of x-ray irradiation, the accumulation of charge carriers occurs in pairs. This process is caused by the formation of excimer-like molecular states during excitation of the crystal. |
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