查找表方式的粒子辐射脉高分析器  

A Multichannel Pulse Height Analyzer by Using Look-up Table for the Particle Radiation Detection

作　　者：师健伟[1] 陈鸿飞[1] 邹鸿[1] 施伟红[1] 于向前[1] 

机构地区：[1]北京大学地球与空间科学学院空间物理与应用技术研究所,北京100871

出　　处：《核电子学与探测技术》2010年第2期171-177,共7页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金面上项目(40774095)资助;北京市教委共建项目(XK100010404)资助

摘　　要：介绍了一个用于空间高能粒子探测的多道脉高分析器电路的设计。该分析器通过模数转换器把输入信号数字化,再利用查找表来完成能段甄别工作。能档计数和数据传输由80C31单片机控制。该电路能精确地对辐射脉冲进行幅度甄别,并给出入射粒子的能档,而且系统可靠性高,易于校准和标定。It demonstrates a circuit of the multichannel pulse height analyzer used for the energetic particle detection in space--based instruments. The analyzer digitizes the input signal by an analog-to-digital converter （ADC）, then adopts a look--up table to discriminate the energy range of the incident particles. A 80C31 data process unit counts the discrimination pulses and delivers the data to the external device. The circuit performs energy discrimination precisely. It is highly reliable and convenient to calibrate.

关 键 词：多道分析 脉高分析 查找表 粒子辐射探测 

分 类 号：TL822[核科学技术—核技术及应用]