Pulse shape discrimination study with Tl2ZrCl6 crystal scintillator

被引：25

作者：

Phan Quoc Vuong ^{[1
]}

Kim, HongJoo ^{[1
]}

Park, Hwanbae ^{[1
]}

Rooh, Gul ^{[2
]}

Kim, SungHwan ^{[3
]}

机构：

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

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

[3] Cheongju Univ, Dept Radiol Sci, Cheongju 28503, South Korea

来源：

RADIATION MEASUREMENTS | 2019年 / 123卷

基金：

新加坡国家研究基金会;

关键词：

Tl2ZrCl6; crystal; Energy resolution; Pulse shape discrimination; Figure-of-merit; Quenching factor; RAY;

D O I：

10.1016/j.radmeas.2019.02.007

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Tl2ZrCl6 (TZC) crystal is an efficient scintillator for high energy gamma-ray detection due to its high effective atomic number, high light yield and good energy resolution. This crystal with the dimension of diameter 10 mm and length 50 mm is grown from the melt by using vertical Bridgman technique. In this communication, we report on its pulse shape discrimination (PSD) capability for the signals induced by alpha-particles and gamma-rays from Am-241 and Cs-137 sources, respectively. Three PSD methods including mean time, charge integration and optimum filter method have been employed and the results have been compared. The best figure-of-merits (FOM) is obtained to be 3.5 for optimum filter method. We expect that this scintillator will be a promising candidate for the fast neutron spectroscopy due to the high concentration of Cl. The energy resolution, decay time, quenching factor and pulse-height characteristics have been also measured for alpha- and gamma-sources at room temperature.

引用

页码：83 / 87

页数：5

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