Property investigation of the wedge-shaped CsI(Tl) crystals for a charged-particle telescope
Property investigation of the wedge-shaped CsI(Tl) crystals for a charged-particle telescope
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带电粒子望远镜用楔形 CsI(Tl) 晶体的特性研究
DOI：
10.1016/j.nima.2021.165637
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
D
中科院分区：
文献类型：
--
作者：
Li G.;Lou J. L.;Ye Y. L.;Hua H.;Wang H.;Han J. X.;Liu W.;Bai S. W.;Tan Z. W.;Ma K.;Chen J. H.;Yang L. S.;Wang S. J.;Hu Z. Y.;Yu H. Z.;Zhu H. Y.;Xia B. L.;Jiang Y.;Liu Y.;Yang X. F.;Li Q. T.;Xu J. Y.;Wang J. S.;Yang Y. Y.;Ma J. B.;Chen R. F.;Ma P.;Bai Z.;D
设计了两种楔形的CsI(Tl)晶体，放置在环形双面硅探测器的后面，用ΔE−E方法识别轻带电粒子。用α光源和15C辐射束研究了不同形状和尺寸的CsI(Tl)探测器的性能，发现较大的晶体具有更好的能量分辨率、更小的光输出不均匀性以及更好的粒子识别能力，并最终被用来组成ΔE-E望远镜。基于Geant4的模拟结果，对两种CsI(Tl)晶体的性能进行了解释。
Two types of wedge-shaped CsI (Tl) crystals were designed to be placed behind an annular double-sided silicon detector to identify light charged-particles with the Δ E− E method. The properties of the CsI (Tl) detectors with different shapes and sizes were investigated using an α source and a radioactive beam of 15 C. The larger crystal was found to have better energy resolution, smaller light output non-uniformity, as well as better particle identification capability, and was finally adopted to form the Δ E-E telescope. The performance of the two types of CsI (Tl) crystals are interpreted based on Geant4 simulation results.