星载辐照剂量深度分布探测仪设计  

Design Spaceborne of Radiation Dosimeter in Depth

作　　者：孙莹 张斌全[1,2,3] 张效信 张鑫[1,2,3] 张申毅[1,2,3] 沈国红 常峥[1,2,3] 王春琴 孙越强[1,2,3] 宗位国 郭建广[4] 薛炳森 张立国[5] 陈强 张如意[1] SUN Ying;ZHANG Binquan;ZHANG Xiaoxin;ZHANG Xin;ZHANG Shenyi;SHEN Guohong;CHANG Zheng;WANG Chunqin;SUN Yueqiang;ZONG Weiguo;GUO Jianguang;XUE Bingsen;ZHANG Liguo;CHEN Qiang;ZHANG Ruyi(National Space Science Center,Chinese Academy of Sciences,Beijing 100190;Beijing Key Laboratory of Space Environment Exploration,Beijing 100190;Key Laboratory of Science and Technology on Space Environment Situational Awareness,Chinese Academy of Sciences,Beijing 100190;National Satellite Meteorological Center,Beijing 100081;Shanghai Institute of Satellite Engineering,Shanghai 201109)

机构地区：[1]中国科学院国家空间科学中心,北京100190 [2]天基空间环境探测北京市重点实验室,北京100190 [3]中国科学院空间环境态势感知技术重点实验室,北京100190 [4]国家卫星气象中心,北京100081 [5]上海卫星工程研究所,上海201109

出　　处：《空间科学学报》2021年第5期793-799,共7页Chinese Journal of Space Science

摘　　要：空间带电粒子对在轨航天器会产生辐照剂量效应,严重时可导致星载设备及航天器等的性能衰减及寿命下降,因此采用了星内多点多方位的辐照总剂量探测技术.在中国首次采用深度剂量监测方案.每个探头设置5个剂量监测点,对应屏蔽厚度分别为0(开窗),1mm,2.5mm,3.5mm,6mm的铝结构,探测剂量总量程为2×10^(6)rad(Si),最高灵敏度为1rad(Si).所设计的星载辐照剂量深度分布探测仪可以对卫星在轨遭受的辐照剂量进行实时监测和预警,其探测结果用于研究星内剂量深度分布,对卫星载荷在轨工作状态进行分析评估,并为后续卫星的抗辐照加固设计提供依据.In view of the radiation dose effect of space charged particles on spacecraft in orbit,which leads to performance degradation and life decline of onboard equipment and aerospace materials,a multi-point and multi-directional total radiation dose detection technology in satellite is proposed.The scheme of dose monitoring in depth is adopted for the first time in China.Each probe is equipped with five dose monitoring points,corresponding to the aluminum structure with shielding thickness of 0(open window),1mm,2.5mm,3.5mm and 6mm.The total detection close range is 2×10^(6)rad(Si),and the highest sensitivity is 1rad(Si).The on-board radiation dosimeter in depth will carry out real-time monitoring and early warning of the radiation dose suffered by the satellite in orbit.The detection results will be used to carry out the research on the depth distribution of the dose in the satellite,which is conducive to the analysis and evaluation of the working state of the satellite load in orbit,and provide a reliable basis for the follow-up anti-radiation hardening design of the satellite.

关 键 词：辐照剂量 剂量深度分布监测 抗辐照加固 空间环境 

分 类 号：V45[一般工业技术—材料科学与工程] TN956[电子电信—信号与信息处理]