Two annular CsI(Tl) detector arrays for the charged particle telescopes  

作　　者：Hong-Yu Zhu Jian-Ling Lou Yan-Lin Ye Li-Sheng Yang Bo-Long Xia Kang Wei Ying Chen Wei-Liang Pu Zi-Yao Hu Hao-Yu Ge Jia-Hao Chen Kai Ma Wen-Wu Wan Hooi-Jin Ong Yan-Yun Yang Shi-Wei Xu Kang Wang Fang-Fang Duan Jun-Bin Ma Zhen Bai Peng Ma Ruo-Fu Chen 

机构地区：[1]School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China [2]Institute of Modern Physics,Chinese Academy Sciences,Lanzhou 730000,China

出　　处：《Nuclear Science and Techniques》2023年第10期158-165,共8页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China (Nos.12275007, U1867214, 11775004);the funding from the State Key Laboratory of Nuclear Physics and Technology,Peking University,China (No. NPT2021ZZ01);funding from heavy Ion Research Facility,Lanzhou,China (No. HIR2021PY002)。

摘　　要：In this study,we constructed two annular detector arrays comprising 24 wedge-shaped CsI(Tl) crystals,and tested them using anαsource and radioactive beams of ^(14-16) Con a CD_2 target.We compared the properties of a CsI(Tl) crystal encapsulated with various reflectors,revealing that using the 80-μm-thick ESR film to pack the CsI(Tl) crystal yielded the largest light output with the smallest non-uniformity in light output (ΔLO).For the 24 CsI(Tl) detectors with the 80-μm-thick ESR films,the average energy resolution improved as the average light output increased;however,it deteriorated as theΔLO value increased.To form two annular Si-CsI(Tl) telescopes for identifying the light-charged particles,theΔLO value and energy resolution of each CsI(Tl) detector were maintained under 20%and 7.7%,respectively.These telescopes were tested for the first time in a direct nuclear reaction experiment using ^(14-16) C+d.The results demonstrated that the Z=1 and Z=2 charged particles were adequately discriminated by the telescopes using the standardΔE-E method.

关 键 词：Wedge-shaped CsI(Tl)detector Light output non-uniformity Si-CsI(Tl)telescope Particle identification 

分 类 号：TL81[核科学技术—核技术及应用]