时间投影室可编程通用电子学(GET)调试与原始数据处理方法  

Testing and Raw Data Processing Method of Programmable Generic Electronics for TPC(GET)

作　　者：边佳伟 李奇特 许金艳 杨再宏 BIAN Jiawei;LI Qite;XU Jinyan;YANG Zaihong(State Key Laboratory of Naclear Physics and Technology,School of Physics,Peking University,Beijing 10087,China)

机构地区：[1]北京大学物理学院,北京大学核物理与核技术国家重点实验室,北京100871

出　　处：《核电子学与探测技术》2025年第1期1-7,共7页Nuclear Electronics & Detection Technology

基　　金：国家重点研发项目资助(No.2023YFE0101500,2022YFA1605100,No.2018YFA0404403);国家自然科学基金(No.12275006);核物理与核技术国家重点实验室开放课题资助(No.NPT2020KFY06,NPT2020KFJ01)。

摘　　要：介绍了时间投影室(TPC)通用的高密度电子学GET架构及调试过程,对GET运行中出现的空事件及基线振荡问题提出可能的解决方法。测量了基线及内部脉冲信号,简单介绍了基线数据的处理和输入信号重建的方法。采用Cooley-Turkey FFT算法对GET电子学响应函数进行估算,分析电子学响应的时域和频域表现:GET电子学响应非线性,出于精度考虑需对输入信号进行重建;高频噪声在重建中的影响较大,实际重建中考虑引入低通滤波函数降低噪声影响。This paper introduces the architecture and debugging process of generic high-density electronics GET developed for the Time Projection Chamber(TPC),and proposes possible solutions to the problems of null events and baseline oscillations in the GET operation.The background and internal pulse signals are recorded using GET,and the methods of background data processing and input signal reconstruction are introduced.The response function of GET is estimated with Cooley-Turkey FFT algorithm,and the time and frequency domain performance of the response is analyzed,finding that the response function of GET is nonlinear and the input signal thus needs to be reconstructed for better accuracy.In actual reconstruction,a low-pass filter function can be further considered to reduce the influence of high-frequency noise.

关 键 词：GET调试 AGET FPN 响应函数 

分 类 号：X826[环境科学与工程—环境工程]