Scintillation performance of the TlSr2I5 (Eu2+) single crystal

被引：20

作者：

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

Rooh, Gul ^{[2
]}

Khan, Arshad ^{[1
]}

Park, H. ^{[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：

OPTICAL MATERIALS | 2018年 / 82卷

基金：

新加坡国家研究基金会;

关键词：

X-ray; Decay time; Light yield; Energy resolution; Scintillator; CE3+; LUMINESCENCE; IODIDES; TL;

D O I：

10.1016/j.optmat.2018.05.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TlSr2I5: Eu2+ is a newly discovered scintillator that show promising scintillation properties for X- and gamma-ray spectroscopy applications. Two zone vertical Bridgman technique is used for the growth of this scintillator. Luminescence properties of the grown crystals are measured under X-ray excitation at room temperature. Pure and Eu2+ doped crystals contained broad emission bands between 445 and 670 nm peaking at 528 nm and 430-600 nm peaking at 463 nm, respectively. Energy resolution, light yield and decay time profiles are studied under 662 keV gamma-ray excitation using Cs-137 radioactive source. Energy resolution of 4.2% (FWHM) is obtained for 3 mol% Eu2+ doped crystal. For the same sample, light yield of 70,000 ph/MeV is also obtained. Three and two decay constants are observed for the pure and Eu2+ doped samples, respectively at room temperature. Effective Z-number and density are found to be 61 and 5.30 g/cm(3), respectively.

引用

页码：7 / 10

页数：4

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