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

Результат исследований: Материалы для журналаСтатья

1 Цитирования (Scopus)

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 оригиналаАнглийский
Страницы (с-по)13-20
Число страниц8
ЖурналFunctional Materials
Том25
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2018

ASJC Scopus subject areas

  • Materials Science(all)

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