α/β探头适配电路设计及性能研究  

作　　者：刘毅 卢威骅 李元东 

机构地区：[1]成都理工大学地学核技术四川省重点实验室,四川成都610059 [2]南京中硼联康医疗科技有限公司,江苏南京210008 [3]四川省辐射环境管理监测中心站,四川成都611139

出　　处：《科技创新与应用》2018年第6期17-19,共3页Technology Innovation and Application

基　　金：国家自然科学基金(编号:41474159);四川省科技计划项目(编号:2015JQO035)资助

摘　　要：α/β探头适配电路是α/β粒子测量系统的核心部分,直接影响系统对α粒子和β粒子的活度测量性能。文章针对α/β粒子测量系统设计了α/β探头适配电路,包括整形滤波电路、积分电路、甄别电路。为研究该适配电路性能,测试了整形滤波、积分及甄别电路输出波形。实验表明,该适配电路性能优异,可将探头输出的模拟信号转换为数字信号,实现对α粒子和β粒子的计数。An α/β probe adaptor circuit is the core part of an α/β particle measurement system, which directly affects the performance of the system in measuring the activity of α and β particles. In this paper, an α/β probe adaptor circuit is designed forthe α/β particle measurement system, including shaping filter circuit, integral circuit and discriminant circuit. In order to study theperformance of the adaptive circuit, the output waveforms of the shaping filter, integral and discriminant circuits are tested. The experiment shows that the circuit has excellent performance and can convert the analog signal from the probe into digital signal to realize the counting of α and β particles.

关 键 词：α/β粒子测量系统 α/β探头适配电路 甄别电路 输出波形 

分 类 号：TL814[核科学技术—核技术及应用]