集成多路单道能谱仪设计与信号处理  

The Design and Experiment of Multiple Single Channel Analyzer

作　　者：路书祥 张智豪 姜丹丹 杨洁[1] 谷肖飞 LU Shuxiang;ZHANG Zhihao;JIANG Dandan;YANG Jie;GU Xiaofei(School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学物理学院(微电子学院),郑州450001

出　　处：《核电子学与探测技术》2024年第5期785-790,共6页Nuclear Electronics & Detection Technology

基　　金：河南省科技攻关计划(202102210108);河南省高校科技创新团队(18IRTSTHN016)资助。

摘　　要：为满足核燃料间隙与核燃料富集度检测的需求,设计集成多路单道能谱仪。采用多阳极光电倍增管读出芯片MPR2进行前端信号成形和甄别,使用FPGA进行控制和计数,通过ARM处理器发送给上位机进行显示。实验测试结果表明,采用该方法设计的能谱仪在脉冲信号在300 kHz以下时计数误差为±1,能谱仪最大计数率可达5 MHz。该设备自2018年在核燃料棒富集度检测系统运行至今表现稳定,可谱仪满足核燃料间隙与核燃料富集度检测设计的要求。In order to meet the requirement of nuclear fuel gap and enrichment test,an integrated multipath single-channel energy spectrometer is designed.The multi-anode photomultiplier tube readout chip MPR2 was used to perform the front-end signal forming and screening,and FPGA was used for control and counting.Finally,the output data was sent to the upper computer by ARM microprocessor.The design results were verified by standard signal generator.The experimental results show that the counting error of the spectrometer is±1 when the pulse signal is below 300 kHz,and the maximum counting rate of the spectrometer can reach 5 MHz.The equipment has been running stably in the nuclear fuel rod enrichment detection system since 2018,and the spectrometer can meet the requirements of nuclear fuel gap and nuclear fuel enrichment detection design.

关 键 词：单道脉冲分析器 多路集成 信号处理 

分 类 号：TL822.4[核科学技术—核技术及应用]