Influence of color centers on the luminescent response of radiation-damaged CsI:Tl crystal
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Influence of color centers on the luminescent response of radiation-damaged CsI:Tl crystal
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| Creator |
Yakovlev, V.
Trefilova, L. Alekseev, V. Karnaukhova, A. Shpylynska, O. Lebedynskiy, A. Tarakhno, O. |
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| Subject |
Characterization and properties
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| Description |
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.
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| Date |
2019-06-15T06:49:00Z
2019-06-15T06:49:00Z 2018 |
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| Type |
Article
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| Identifier |
Influence of color centers on the luminescent response of radiation-damaged CsI:Tl crystal / V. Yakovlev, L. Trefilova, V. Alekseev, A. Karnaukhova, O. Shpylynska, A. Lebedynskiy, O. Tarakhno // Functional Materials. — 2018. — Т. 25, № 1. — С. 13-20. — Бібліогр.: 19 назв. — англ.
1027-5495 DOI: https://doi.org/10.15407/fm25.01.013 http://dspace.nbuv.gov.ua/handle/123456789/154076 |
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| Language |
en
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| Relation |
Functional Materials
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| Publisher |
НТК «Інститут монокристалів» НАН України
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