次级宇宙射线探测装置设计  

A portable Plastic Scintillator Detection System for Cosmic Ray Measurement

作　　者：尹俊[1,2] 张亚鹏 倪发福[1,2] 王荣 张鹏鸣[1] 韩成栋 李姣赛[1,2] 郑洋德[1,2] 白晓 王彦瑜 YIN Jun;ZHANG Ya-peng;NI Fa-fu;WANG Rong;ZHANG Peng-ming;HAN Cheng-dong;LI Jiao-sai;ZHENG Yang-de;BAI Xiao;WANG Yan-yu(Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院大学,北京100049

出　　处：《核电子学与探测技术》2017年第9期929-934,共6页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金资助项目(11405227;11673047);中国科学院西部之光人才培养资助项目(Y532050XB0)

摘　　要：为实时测量不同角度μ射线通量,构建了一款小型宇宙射线探测装置。该装置将闪烁体探测器、前端电子学电路、高压电源电路以及符合测量电路有机结合起来构建了一套完整的信号测量与数据获取系统。采用现场可编程门阵列进行两路探测器信号的符合逻辑设计,符合时间的调节精度为2.5 ns。利用该宇宙射线探测装置测量了兰州市区次级宇宙射线的天顶角分布,其结果很好地满足经验公式。In order to measure the real-time zenith angle distributions of muons,a portable plastic scintillator detection system was constructed. This device was composed of scintillator detector,front-end electronics circuit,high voltage power supply and coincidence measurement module to form a complete set of signal measurement and data acquisition system. The coincidence measurement logic based on FPGA had an adjustment accuracy of 2. 5 ns. The measurement of the zenith angle distribution of the secondary cosmic rays in the urban area of Lanzhou was well satisfied with the empirical formula.

关 键 词：宇宙射线μ子测量 塑料闪烁体 FPGA VC 

分 类 号：TL812[核科学技术—核技术及应用]