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http://repositsc.nuczu.edu.ua/handle/123456789/8802| Title: | Influence of color centers on the luminescent response of radiation-damaged CsI:Tl crystal |
| Authors: | Яковлев, В. Тарахно, О.В. Трефилова, Л.Н. Алексеев, В. Лебединский, А. Шпилинская, О. |
| Keywords: | energy transfer luminescence color center radiation damage thallium doped cesium iodide сцинтиляційні матеріали |
| Issue Date: | 2018 |
| Citation: | Yakovlev, V., Trefilova, L., Alekseev, V., Lebedynskiy, A., Tarakhno, O. / Influence of color centers on the luminescent response of radiation-damaged CsI:Tl crystal // Functional Materials. |
| Abstract: | Luminescence properties of Tl0va+ and Tl+vc- color centers induced by irradiation in CsI:Tl crystal are studied within a temperature range of 80-300 K. It is found, that electron Tl0va+ and hole Tl+vc- color centers arising due to radiation damage do not reduce conversion efficiency of CsI:Tl crystal, but participate in scintillation process to get energy from Tl+ centers by resonance. Degradation of the light yield of the irradiated CsI:Tl crystal is caused by the radiative energy transfer from Tl+ to Tl0va+ centers, whose emission is quenched at temperature above 210 K. Non-radiative energy transfer from Tl+ to Tl+vc- centers results in long-wave spectral shift and the duration increase of the scintillation pulse. |
| URI: | http://repositsc.nuczu.edu.ua/handle/123456789/8802 |
| Appears in Collections: | Кафедра спеціальної хімії та хімічної технології |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| fm251-013 (1).pdf | Люминисцентный отклик | 930,18 kB | Adobe PDF | View/Open |
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