Influence of color centers on the luminescent response of radiation-damaged CsI: Tl crystal
| Parent link: | Functional Materials Vol. 25, No. 1.— 2018.— [P. 13-20] |
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| Coauteur: | |
| Andere auteurs: | , , , , , , |
| Samenvatting: | Title screen 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. |
| Taal: | Engels |
| Gepubliceerd in: |
2018
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| Onderwerpen: | |
| Online toegang: | http://earchive.tpu.ru/handle/11683/64799 https://doi.org/10.15407/fm25.01.013 |
| Formaat: | Elektronisch Hoofdstuk |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658237 |
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| 200 | 1 | |a Influence of color centers on the luminescent response of radiation-damaged CsI: Tl crystal |f V. Yu. Yakovlev [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 19 tit.] | ||
| 330 | |a 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. | ||
| 461 | |t Functional Materials | ||
| 463 | |t Vol. 25, No. 1 |v [P. 13-20] |d 2018 | ||
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