New Tl2LaBr5: Ce3+ crystal scintillator for γ-rays detection

被引：26

作者：

Kim, H. J. ^{[1
]}

Rooh, Gul ^{[2
]}

Khan, Arshad ^{[1
]}

Kim, Sunghwan ^{[3
]}

机构：

[1] Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea

[2] Abdul Wali Khan Univ, Dept Phys, Mardan 23200, Pakistan

[3] Cheongju Univ, Dept Radiol Sci, Cheongju 41566, South Korea

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2017年 / 849卷

基金：

新加坡国家研究基金会;

关键词：

Tl2LaBr5; Scintillation; Light yield; Energy resolution; Z-number; Decay time; ENERGY-RESOLUTION SCINTILLATOR; LABR3;

D O I：

10.1016/j.nima.2017.01.012

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

In this study we present our preliminary report on the scintillation properties of new Ce-doped Tl2LaBr5 single crystal. Two zones vertical Bridgman technique is used for the growth of this compound. Pure and Ce-doped samples showed maximum emission peaks at 435 rim and 415 nm, respectively. Best light yield of 43,000 +/- 4300 ph/MeV with 6.3% (FWHM) energy resolution is obtained for 5% Ce-doped sample under gamma-ray excitation. Single exponential decay time constant of 25 ns is observed for 5% Ce doped sample. Effective Z-number is found to be 67, therefore efficient detection of X- and gamma-ray will be possible. Preliminary results revealed that this compound will be an ideal candidate for the medical imaging techniques. Further investigations are under way for the determination of optimized conditions of this compound.

引用

页码：72 / 75

页数：4

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