Аннотация
Luminescence properties of Tl0va + and Tl2+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 Tl2+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 Tl2+vc - centers results in long-wave spectral shift and the duration increase of the scintillation pulse.
Язык оригинала | Английский |
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Страницы (с-по) | 13-20 |
Число страниц | 8 |
Журнал | Functional Materials |
Том | 25 |
Номер выпуска | 1 |
DOI | |
Состояние | Опубликовано - 1 янв 2018 |
ASJC Scopus subject areas
- Materials Science(all)