Dedicated SiPM array for GRD of GECAM

作     者：D.L.Zhang X.L.Sun Z.H.An X.Q.Li X.Y.Wen K.Gong C.Cai Z.Chang G.Chen C.Chen Y.Y.Du M.Gao R.Gao D.Y.Guo J.J.He D.J.Hou Y.G.Li C.Y.Li G.Li L.Li X.F.Li M.S.Li X.H.Liang X.J.Liu Y.Q.Liu F.J.Lu H.Lu B.Meng W.X.Peng F.Shi H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao S.L.Xiong Y.B.Xu Y.P.Xu S.Yang1 X.Zhou J.W.Yang Fan Zhang S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang X.Y.Zhao D.L.Zhang;X.L.Sun;Z.H.An;X.Q.Li;X.Y.Wen;K.Gong;C.Cai;Z.Chang;G.Chen;C.Chen;Y.Y.Du;M.Gao;R.Gao;D.Y.Guo;J.J.He;D.J.Hou;Y.G.Li;C.Y.Li;G.Li;L.Li;X.F.Li;M.S.Li;X.H.Liang;X.J.Liu;Y.Q.Liu;F.J.Lu;H.Lu;B.Meng;W.X.Peng;F.Shi;H.Wang;J.Z.Wang;Y.S.Wang;H.Z.Wang;X.Wen;S.Xiao;S.L.Xiong;Y.B.Xu;Y.P.Xu;S.Yang;J.W.Yang;Fan Zhang;S.N.Zhang;C.Y.Zhang;C.M.Zhang;Fei Zhang;X.Y.Zhao;X.Zhou

作者机构：Institute of High Energy PhysicsCASBeijing 100049China State Key Laboratory of Particle Detection and ElectronicsBeijing 100049China 

出 版 物：《Radiation Detection Technology and Methods》 (辐射探测技术与方法（英文）)

年 卷 期：2022年第6卷第1期

页      面：63-69页

核心收录：

学科分类：08[工学] 0807[工学-动力工程及工程热物理] 082501[工学-飞行器设计] 0827[工学-核科学与技术] 0703[理学-化学] 0825[工学-航空宇航科学与技术] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This research was supported by the Key Research Program of Frontier Sciences,Chinese Academy of Sciences(QYZDBSSW-SLH012) the National Natural Science Foundation of China(11775251,11775252) the strategic leading science and technology program of Chinese Academy of Sciences(XDA 15360100,XDA 15360102) 

主　　题：SiPM GECAM Gamma-ray Signal-to-noise ratio Reflecting film Pre-amplifier 

摘      要：Purpose The discovery of gravitational waves and gamma-ray bursts heralds the era of multi-messenger *** the adoption of two small satellites to achieve the all-sky monitoring of gamma-ray bursts,the gravitational wave highenergy electromagnetic counterpart all-sky monitor(GECAM)possesses a quasi-real-time early warning ability and plays an important role in positioning the sources of gravitational waves and in subsequent *** satellite of GECAM was fitted with 253-inch-diameter gamma-ray detectors(GRD),covering an energy range of 8–2 *** have adopted silicon photomultiplier tubes(SiPM)in lieu of photomultiplier tubes(PMT)to adapt to the dimensional limitations of *** A unique 3-inch circular SiPM array was *** this design,646×6 mm chips were arranged evenly in a circular manner with the seams filled with reflecting films,thus achieving satisfactory uniformity of light *** integrated pre-amplifier circuit on the back of the SiPM array adopted two-level grouping and summing;further,it achieved a satisfactory signal-to-noise *** high-gain and low-gain channels were adopted to achieve a large dynamic range,and two independent power supply units were used,where each unit can be closed separately,thus improving *** Performance studies show that this SiPM array meets the requirements of *** A 3-inch SiPM array have been developed that uses grouped summation,reflective films,a circular arrangement,two groups of independent power supplies,high-and low-gain signals,differential signal output technologies,*** solution can be used not only for GECAM,but also as a general solution for SiPM-based scintillation detectors.