有机闪烁体探测器数字化信号处理电路设计  

Design of Digital Signal Processing Circuit for Organic Scintillator Detector

作　　者：夏文明 节帅 XIA Wen-ming;JIE Shuai(College of Nuclear Science and Technology,Naval Univ of Engineering,Wuhan Hubei 430033,China;Troops 92330 of PLA,Qingdao Shandong 266100,China)

机构地区：[1]海军工程大学核科学技术学院,湖北武汉430033 [2]中国人民解放军92330部队,山东青岛266100

出　　处：《核电子学与探测技术》2022年第2期203-209,共7页Nuclear Electronics & Detection Technology

摘　　要：介绍了基于FPGA的有机闪烁体探测器数字化信号处理电路的设计.电路设计由前置放大器、高速ADC、FPGA系统、MCU微控制系统、电源系统等组成,通过对粒子射线的模拟信号采集、后续分析处理和脉冲形状算法,实现中子和γ脉冲信号的甄别及对应剂量值的计算.主要性能测试结果表明:电路设计具有较好的中子和γ甄别效果,可实现准确有效的中子和γ剂量测量.The design of the digital signal processing circuit of the organic scintillator detector based on FPGA is introduced.The circuit design is composed of preamplifier,high-speed ADC,FPGA system,MCU micro-control system,power supply system,etc.,through the particle ray analog signal acquisition,subsequent analysis and processing and pulse shape algorithm to realize the discrimination of neutron and gamma pulse signals and the calculation of the neutron dose value.The main performance test results show that the circuit design has a better neutron and gamma discrimination effect,and can achieve accurate and effective neutron and gamma dose measurement.

关 键 词：有机闪烁体 FPGA 信号处理 

分 类 号：TL818.1[核科学技术—核技术及应用]