SiPM批量老练和性能测量系统研制  

Development of SiPM batch aging and performance measurement system

作　　者：易楚琦 韩纪锋 陈阳梅 胡鹏 何骏涵 龙逸洋 刘星泉 林炜平 曲国峰 钱森[3] 任培培 任晶[4] 宋瑞强 汪鹏辉 王科[3] 王娜[3] 王志刚[3] 王慈 王姣[5] 殷生华 赵朝阳 YI Chuqi;HAN Jifeng;CHEN Yangmei;HU Peng;HE Junhan;LONG Yiyang;LIU Xingquan;LIN Weiping;QU Guofeng;QIAN Sen;REN Peipei;REN Jing;SONG Ruiqiang;WANG Penghui;WANG Ke;WANG Na;WANG Zhigang;WANG Ci;WANG Jiao;YIN Shenghua;ZHAO Chaoyang(Key Laboratory of Radiation Physics and Technology of Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University,Chengdu 610064,China;China National Nuclear Corporation(Beijing)Nuclear Instruments Co.Ltd.,Beijing 100176,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin 150001,China;Sichuan Vocational and Technical College of Communications,Chengdu 611130,China)

机构地区：[1]四川大学原子核科学技术研究所辐射物理及技术教育部重点实验室,成都610064 [2]中核(北京)核仪器有限责任公司,北京100176 [3]中国科学院高能物理研究所,北京100049 [4]哈尔滨工程大学物理与光电工程学院,哈尔滨150001 [5]四川交通职业技术学院,成都611130

出　　处：《核技术》2025年第3期101-111,共11页Nuclear Techniques

基　　金：国家重点研发计划项目(No.2023YFF0721700)资助。

摘　　要：硅光电倍增管(Silicon Photomultiplier,SiPM)作为近年来发展的一种新型光电探测器件,具有低成本、小型化、工作电压低等优势,已广泛应用于粒子探测、医学成像、高能物理等领域,特别是在大面积粒子成像领域,有着广阔的应用前景。但大面积成像需要大量的SiPM,实现大量SiPM的批量筛选、老练和性能测量至关重要。本文研究设计了一套SiPM批量性能测量系统,可实现对512个(数量可进一步拓展)SiPM的同时老练和性能测量。通过编制在线控制程序,对大量SiPM轮询测量,实现老练和性能(包括击穿电压、温度系数)测量。结果显示:SiPM在经过老练之后,整体上暗电流显著降低,表明老练有利于使大量SiPM性能快速稳定。老练后,SiPM的击穿电压均值为24.88 V(@25℃),与厂商数据25 V(@25℃)符合良好;击穿电压随温度而增大,其温度系数为35.3 mV·℃^(−1)。结果表明:研制的SiPM批量老练和性能测量系统能够实现对大量SiPM的同时老练,使其性能快速稳定;可快速获得大量SiPM的性能参数,获得I-V曲线、击穿电压、温度系数等,对于SiPM的批量筛选和性能测试具有显著参考价值。[Background]As a new type of optoelectronic detector developed in recent years,SiPM(Silicon Photomultiplier)has the advantages of low cost,miniaturization and low working voltage.It has been widely used in particle detection,medical imaging,high-energy physics and other fields,especially in the field of large-area particle imaging.However,large-area imaging necessitates a substantial number of SiPMs,making it essential to conduct batch screening,aging,and performance measurements for these devices.[Purpose]This study aims to design a batch performance measurement system for SiPMs that enables the simultaneous aging and performance assessment of 512 SiPMs(the number can be further expanded).[Methods]Firstly,a SiPM batch aging and performance measurement system,mainly consisting of a digital multimeter,relay,low-voltage power supply,constant temperature and humidity box,and host computer was designed.Then,an online control program was developed in Python to measure the aging performance of 512 SiPMs under conditions of 30℃,40%relative humidity and an operating voltage of 29 V.Finally,the relative derivative method was apllied to the study of the variation in the breakdown voltage of the SiPMs was studied under different temperatures(25℃,27℃,29℃,and 30℃)at voltages ranging from 22 V to 29 V and a constant relative humidity of 40%.[Results]The results show that the dark current of SiPM decreases significantly after aging,indicating that the aging process is beneficial for rapidly stabilizing the performance of a large number of SiPMs.After aging,the average breakdown voltage of SiPM is 24.88 V(@25℃),which is in good agreement with the manufacturer's data of 25 V(@25℃),and the breakdown voltage increased with increasing temperature,and a linear fit yielded a temperature coefficient of 35.3 mV·℃^(−1),with a correlation coefficient(R2)of 0.996.[Conclusions]The results demonstrate that the developed system for batch aging and performance measurement of SiPM can be simultaneously used to age a large num

关 键 词：SIPM 批量测量 系统设计 老练性能测量 击穿电压 

分 类 号：TL82[核科学技术—核技术及应用]