Effects of Bi 3+  codoping on the optical and scintillation properties of CsI:Tl single crystals | Zendy

Wu Yuntao | Zendy; Ren Guohao | Zendy; Meng Fang | Zendy; Chen Xiaofeng | Zendy; Ding Dongzhou | Zendy; Li Huanyin | Zendy; Pan Shangke | Zendy

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Effects of Bi 3+ codoping on the optical and scintillation properties of CsI:Tl single crystals

Author(s) -

Wu Yuntao,

Ren Guohao,

Meng Fang,

Chen Xiaofeng,

Ding Dongzhou,

Li Huanyin,

Pan Shangke

Publication year - 2014

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.201431299

Subject(s) - radioluminescence , scintillation , afterglow , ion , yield (engineering) , materials science , scintillator , analytical chemistry (journal) , atomic physics , optics , chemistry , physics , detector , gamma ray burst , metallurgy , organic chemistry , chromatography , astronomy

CsI:Tl single crystals with different Bi 3+ concentrations from zero to 0.05 mol% were grown by the vertical Bridgman technique. The effects of Bi 3+ codoping on the scintillation properties of CsI:Tl single crystals were investigated, including afterglow level, relative light yield, energy resolution, scintillation decay time and radioluminescence spectra. Afterglow suppression by Bi 3+ codoping was confirmed, but it resulted in a considerable decrease of light yield and energy resolution. The deterioration of light yield was ascribed to the self‐absorption effect induced by Bi 3+ ions. The physical mechanism and role of Bi 3+ ions in afterglow suppression were proposed.

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