低死时间单道脉冲幅度分析器的设计与仿真  

Design and Simulation of Low Dead-Time Single Channel Analyzer

作　　者：赵修良[1] 张嘉月[1] 吴荣燕[2] 刘丽艳[1] 彭文斌[1] 

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]南华大学电气工程学院,湖南衡阳421001

出　　处：《核电子学与探测技术》2013年第5期624-628,共5页Nuclear Electronics & Detection Technology

摘　　要：死时间是单道脉冲幅度分析器重要性能指标之一,特别是在高计数率条件下,该指标对单道系统的影响尤为明显。针对这一问题设计了一个单道电路,采用了新的逻辑控制电路设计思路,从很大程度降低了传统单道逻辑电路的死时间。用Multisim仿真软件对该电路进行仿真,仿真结果表明其在高频输入信号下工作状态良好。Dead- time is one of important performance indexes of single channel pulse height analyzer（SCA）. Especially under high counting rate condition, its influence is obviously. Aiming at this problem, the paper presents a new logic control circuit design to decrease the dead - time of traditional single channel system. Through simulation by Multisim software, this circuit can work well under high frequency signal.

关 键 词：单道脉冲幅度分析器 低死时间 高计数率 

分 类 号：TL822[核科学技术—核技术及应用]