Luminescent Performances of Pure CsI Crystals

Journal of Inorganic Materials

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Luminescent Performances of Pure CsI Crystals

SHEN Dingzhong; DENG Qun; YUAN Xianglong; ZHANG Liring; YIN Zhiwen

Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China

Received:1996-03-18 Revised:1996-05-04 Published:1997-06-20 Online:1997-06-20

Abstract

Abstract: The optical transmission, X-ray excited emission, energy spectra and decay time characteristics were measured for pure CsI crystals grown by Stockbarger process. The results show thatthe crystals has two scintillation components: a fast component peaked at 310um with <40nsdecay time and a slow component at 450um with ~2.4μs. The slow emission intensity is not stableand considerably thectcd by I- vacancy defects in the crystal. The intensity ratio of fast to slowcomponent obtAlNed is 91.8%.

Key words: pure CsI crystal, fast scintillator, crystal defect

SHEN Dingzhong,DENG Qun,YUAN Xianglong,ZHANG Liring,YIN Zhiwen. Luminescent Performances of Pure CsI Crystals[J]. Journal of Inorganic Materials.

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Luminescent Performances of Pure CsI Crystals

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