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Scintillation Characterizations of Tin Doped Lithium Iodide Crystals at Room and Low Temperature

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Title
Scintillation Characterizations of Tin Doped Lithium Iodide Crystals at Room and Low Temperature
Author(s)
Khan S.; Kim H.J.; Y. D. Kim; M. H. Lee
Publication Date
2016-04
Journal
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, v.63, no.2, pp.448 - 452
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
The crystals of 0.02%, 0.05%, 0.1%, and 0.5% Sn doped LiI are grown by the vertical Bridgman technique. The luminescence and scintillation properties of the grown crystals are investigated. X-ray excited emission spectrum of LiI (Sn) showed a broad emission band between 400-650 nm wavelength range at room temperature. Such emission is attributed to Sn2+ ion. Scintillation properties such as energy resolution, decay time profiles, and light yield are measured under 662 keV (137Cs) γ-ray excitation at room temperature. A maximum light yield of 6000 ± 600 ph/MeV is measured at room temperature. LiI (Sn) single crystals showed two exponential decay components under γ-ray excitation. The dependence of scintillation properties on the temperature is also presented. Changes in the decay time and light yield are measured from 295 K down to 10 K. The light yield of LiI (Sn) at 50 K is found to be nine times higher than that at room temperature. © 2016 IEEE
URI
https://pr.ibs.re.kr/handle/8788114/2511
ISSN
0018-9499
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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