新型数字多道脉冲幅度分析器设计  

The Design of a New Type High Performance Digital Multichannel Analyzer

作　　者：李京伦 肖无云 艾宪芸 张羽中 陈晔 LI Jing-lun;XIAO Wu-yun;AI Xian-yun;ZHANG Yu-zhong;CHEN Ye(State Key Laboratory of NBC Protection for Civilian,Beijing 102205,China)

机构地区：[1]国民核生化灾害防护国家重点实验室,北京102205

出　　处：《核电子学与探测技术》2018年第3期387-393,共7页Nuclear Electronics & Detection Technology

摘　　要：研制了一款新型通用数字多道脉冲幅度分析器。包括模拟调理电路和数字核脉冲信号处理器与微控制器。在16k道数字转换增益下,单脉冲幅度谱展宽后的FWHM均在2道以内,采用Na I(Tl)探测器实测137Csγ能谱,661.7 ke V处能量分辨率达到了6.89%。The development of the nuclear pulse processing techniques is summarized.A universal digital multichannel analyzer is developed,including analog conditioning circuits and digital nuclear pulse processor and micro-processor.With the digital conversion gain set by 16384channels,the FWHM of the single line spectra is within 2channels through the whole range,and the resolution of the NaI (Tl)γ spectra is 6.89%@661.7keV.

关 键 词：核脉冲信号处理 数控极零相消 反卷积 门限积分器 梯形成形器 数字多道 

分 类 号：TL817.2[核科学技术—核技术及应用]