卫星舱内空间带电粒子计数率的动态变化研究  

DYNAMIC VARIATION OF SPACE CHARGED PARTICLE COUNT RATE INSIDE SATELLITE CABIN

作　　者：陈湄[1] 祁章年[1] 李向高[1] 贾向红[1] 黄增信[1] 李正生[2] 李梅[2] 宿晓辉 

机构地区：[1]航天医学工程研究所 [2]中国辐射防护研究院

出　　处：《辐射防护》1998年第4期305-309,共5页Radiation Protection

摘　　要：在我国１９９６年的返回式卫星舱内，搭载了２台Ｇ－Ｍ计数管型辐射测量仪，取得了卫星飞行期间（１５ｄ）舱内带电粒子计数率动态变化的数据。每台仪器的４万多个计数率数据中，８０％以上的计数率小于１５０／ｍｉｎ，大于５００／ｍｉｎ的仅占２％以下，最大计数率达６×１０３／ｍｉｎ。计数率随飞行时间呈周期性变化，周期约为４５ｍｉｎ，除每日出现４～５组大计数率数据外，一般的变化幅度是０～２００／ｍｉｎ。南大西洋异常区是引起计数率增大的原因。卫星上的热释光剂量计测出飞行１５ｄ的舱内平均日剂量为０．１７９ｍＧｙ／ｄ。Data of charged particle count rate inside Chinese satellite cabin have been obtained by two G M counters and recorders in 1996.The satellite stayed in the space for 15 days. Among 80 thousands data up to 80% count rates were less than 150/min,only 2% more than 500/min. The highest count rate was 6×10 3/min. The count rates varied periodically with flying time,the period was about 45 min,the range was 0～200/min and there were 4～5 groups data per day of high count rates. The average dose rate was 0.179 mGy/d inside the cabin.

关 键 词：卫星 空间辐射 计数率 舱内空间 带电粒子 

分 类 号：V520.6[航空宇航科学与技术—人机与环境工程]