一种实用多道脉冲幅度分析器  

A practical multi-channel pulse amplitude analyzer

作　　者：丁卫撑[1,2] 王义[2] 方方[1] 

机构地区：[1]成都理工大学地学核技术四川省重点实验室,成都610059 [2]清华大学工程物理系粒子技术与辐射成像教育部重点实验室,北京100084

出　　处：《核技术》2012年第8期630-634,共5页Nuclear Techniques

摘　　要：便携式核能谱测量仪器一般有低功耗、小体积及低成本等特点,本文以高性能单片微控制器C8051F340为核心,详细介绍了一款多道脉冲幅度分析器的设计方案及相应性能测试,并重点介绍了峰值检测电路的设计及性能测试结果。结合C8051F340高性能特点,在此多道脉冲幅度分析器的基础上增加相应的外围电路及信号调理电路即可构成便携式低功耗核能谱测量系统。A portable nuclear spectrometry system is of low power consumption, small size and low cost, and so is the MCA （multi-channel pulse amplitude analyzer）. In this paper, we report a core controller of an MCA, which uses an on-chip system chip C8051F340 microprocessor. Results of the performance test, with the detection circuit, are given. C8051F340 is of high performance, and high performance MCA for a portable nuclear spectrometry system can be achieved by combining a C8051 F340 with corresponding peripheral circuits and signal conditioning circuits.

关 键 词：峰值检测 能谱 多道 微控制器 脉冲甄别 

分 类 号：TL8[核科学技术—核技术及应用]