ALICE FoCal量能器电荷读出电子学研究  

Charge readout electronics study for the ALICE FoCal calorimeter

作　　者：吝守龙 胡坤[2] 孙鹏飞 胡守扬[1] 许天驹 贾世海 宋金兴 李沛玉 智宇 陈雷 张昀昱 赵明锐 邓桂华 卢志永 靳尚泰 王浩祯 郭佳承 庄晓 蒋涛 张洞明 杨智棋 周静[1] 李笑梅[1] LIN Shoulong;HU Kun;SUN Pengfei;HU Shouyang;XU Tianju;JIA Shihai;SONG Jinxing;LI Peiyu;ZHI Yu;CHEN Lei;ZHANG Yunyu;ZHAO Mingrui;DENG Guihua;LU Zhiyong;JIN Shangtai;WANG Haozhen;GUO Jiacheng;ZHUANG Xiao;JIANG Tao;ZHANG Dongming;YANG Zhiqi;ZHOU Jing;LI Xiaomei(Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China;Institute of Frontier and interdisciplinary Science,Shandong University,Qingdao 266237,China;Institute of Radiochemistry,China Institute of Atomic Energy,Beijing 102413,China;Center of Nuclear Technical Support,State Administration of Science,Technology and Industry for National Defense,Beijing 100070,China;School of Mechanical Engineering,Guangxi University,Nanning 530004,China;School of Mechanical Engineering and Automation,Dalian Polytechnic University,Dalian 116034,China)

机构地区：[1]中国原子能科学研究院核数据重点实验室,北京102413 [2]山东大学前沿交叉科学青岛研究院,青岛266237 [3]中国原子能科学研究院放射化学研究所,北京102413 [4]国家国防科技工业局核技术支持中心,北京100070 [5]广西大学机械工程学院,南宁530004 [6]大连工业大学机械工程与自动化学院,大连116034

出　　处：《航天器环境工程》2025年第1期22-28,共7页Spacecraft Environment Engineering

基　　金：国家重点研发计划项目(编号:2022YFA1602103,2018YFE0104800);稳定支持基础科研计划项目(编号:BJ010261223282);中国原子能科学研究院放射化学研究所青年基金项目。

摘　　要：为满足ALICE FoCal量能器升级中对高精度电荷读出和高速数据传输的需求,中国原子能科学研究院开展了基于现场可编程门阵列(FPGA)线性放电技术的高精度读出电子学研究。搭建了塑料闪烁体与SiPM耦合的测试平台,并开发了一套读出电子学原型系统。该系统采用放大器芯片配合表面贴装电容和电阻搭建模拟前端,并利用FPGA线性放电技术实现高精度电荷数字化,同时集成了多板同步、数据获取和数据压缩功能,能够满足FoCal中密集SiPM信号读取以及高速数据传输和处理需求。实验结果表明,该系统实现了1100 pC的动态范围和0.25 pC的电荷分辨率,能有效应对FoCal的挑战。High-precision readout electronics based on field-programmable gate array(FPGA)linear discharge technology have been developed at the China Institute of Atomic Energy for the ALICE FoCal upgrade,which requires high-precision charge readout and high-speed data transmission.A test platform has been established with plastic scintillators coupled to Silicon photomultiplier tubes(SiPMs),and a prototype readout electronics system has been developed.The system used amplifier chips and surface-mount components for the analog front-end,and FPGA-based linear discharge technology for charge digitization.Additionally,the system incorporated multi-board synchronization,data acquisition,and compression functions,thus meeting the demands for dense SiPM signal reading,high-speed data transmission,and processing.Experimental results demonstrate the system’s capability to achieve a dynamic range of 1100 pC and a charge resolution of 0.25 pC,effectively addressing the challenges posed by FoCal.

关 键 词：ALICE实验 量能器 硅光电倍增管 现场可编程门阵列 读出电子学系统 

分 类 号：TL27[核科学技术—核燃料循环与材料]