GRM在轨标定探测器的设计和实现  

Design and Implementation of In-orbit Calibration Detector of GRM

作　　者：文星[1,2,3] 刘江涛 刘鑫[1,2,3] 王瑞杰[1,3] 师昊礼[1,3] 李陆 孙建超[1,3] 张力[1,3] 董永伟[1,3] 吴伯冰[1,3] WEN Xing;LIU Jiangtao;LIU Xin;WANG Ruijie;SHI Haoli;LI Lu;SUN Jianchao;ZHANG Li;DONG Yongwei;WU Bobing(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Particle Astrophysics,Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院大学,北京100049 [3]中国科学院粒子天体物理重点实验室,北京100049

出　　处：《原子能科学技术》2019年第6期1091-1097,共7页Atomic Energy Science and Technology

基　　金：国家重点基础研究发展计划资助项目(2014CB845800);国家重点研发计划资助项目(2016YFA040080X);国家自然科学基金资助项目(11327303,11473028,11603026);北京市自然科学基金资助项目(1174021);国家自然科学基金委员会-中国科学院天文联合基金资助项目(U1631242)

摘　　要：伽马射线监视器(GRM)上搭载的在轨标定探测器(GCD)用于在轨探头的增益控制,对于探测器在轨探测性能的研究具有重要意义。本文对其各部分电子学的原理设计、偏压补偿电路的高低温实验验证及结果分析、投产加工及镶嵌源灌封设计等研制过程进行了描述,对设计中出现的问题加以验证及改进。实验和测试结果表明,探测器的功能正确,且探测效率、峰位漂移变化等性能指标均满足任务要求,从而表明该设计可保证GCD在轨功能的可靠实现。The gamma ray monitor(GRM)calibration detector(GCD)on board GRM is used to adjust the gain of main detector in orbit,which is of great significance for the study of detection performance of GRM.The principle design of each electronic part,the high and low temperature experimental verification and result analysis for bias compensating circuit,the production process and the embedment design of inlaid radioactive source were described in detail.Problems occurring in the design were verified and improved.The experiment and test results show that GCD’s function is correct,and the detection efficiency,peak position drift and other performance indicators of GCD meet the requirement of GRM mission,which indicates that the design can guarantee the reliable realization of GCD’s functions in orbit.

关 键 词：伽马射线暴 241Am镶嵌源 SIPM 偏压补偿 

分 类 号：TL816.2[核科学技术—核技术及应用]