Characterization of the new scintillator Cs2LiYCl6:Ce3+

查看全文 作　　者：Kui-Nian [1]Li;Xian-Peng [1,2]Zhang;Qiang [3]Gui;Peng [1]Jin;Geng [1]Tian

机构地区：[1]Northwest Institute of Nuclear Technology, Xi’an 710024,China;[2]School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an 710049, China;[3]Beijing Glass Research Institute, Beijing 101111, China

出　　处：《Nuclear Science and Techniques》索引2018年第29卷第1期,共6页

基　　金：supported by the National Natural Science Foundation of China(No.11575145) 摘　　要：The first domestic inorganic scintillator, Cs_2LiYCl_6:Ce^(3+)(CLYC), was grown at Beijing Glass Research Institute using the vertical Bridgman method. In this work, we evaluated the performance of this new CLYC crystal in terms of its gamma-ray energy resolution and pulse shape discrimination(PSD) capability between neutrons and gamma rays. The decay times associated with different scintillation mechanisms were obtained by fitting decay functions to the neutron and gamma-ray waveform structures. We found an energy resolution of * 4.5% for 662-ke V gamma rays and efficient neutron/gamma PSD with a figure of merit of * 2.6. Under gamma-ray excitation, there is an ultrafast scintillation mechanism in CLYC with a decay time of approximately 2 ns, whereas there is no evidence of ultrafast decay under thermal neutron excitation. This work contributes to the promotion of domestic development of CLYC. 关键词：Cs2LiYCl6:Ce3+ Energy RESOLUTION PULSE SHAPE DISCRIMINATION DECAY time Thermal neutrons

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Characterization of the new scintillator Cs2LiYCl6:Ce3+

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