摘要
在我国１９９２年１０月发射的返回式卫星舱内，测量的７ｄ累积辐射剂量为０．７４ｍＧＹ，平均日剂量为０．１１ｍＧＹ，舱内次级热中子注量为１．３×ｌ０４～２．３×ｌ０４ｎ／ｃｍ２，平均日通量为１．９×１０４～３．３×１０４ｎ／ｃｍ２，重核粒子径迹密度为１２～１５径迹／ｃｍ２．ｄ－１。研究发现，质量厚度不同的卫星头部与裙部的剂量水平无显著差异，说明３００ｋｍ左右的近地轨道飞行器舱内辐射剂量主要来自银河宇宙线。
Radiation measurements were made in the cabin on board the chinese
recoverable satellite 1aunched in October,1992.The accumulated dose in 7 days was0.74mGy.
The average daily dose was 0.11 mGy/d. The fiuence of thermal neutronwas l.2×l05～2.3×
105n/cm2. The average daily flux of thermal neutron was1.9 × 104～3.3 × 104n/(cm2·d).
The daily flux of the HZE particles was 12～15tracks/(cm. Although the thicknesses of the wall
of the head and the skirt were dif-ferent, the daily doses in the head and in the skirt were
similar.The contribution to thedose in the cabin on 300km orbit was mainly due to the Galactic
cosmic rays.
出处
《航天医学与医学工程》
CAS
CSCD
1994年第2期105-108,共4页
Space Medicine & Medical Engineering
关键词
宇宙线
人造卫星
辐射剂量
测量
cosmic rays, artificial satellites ,radiation dosage ,radiation
measurement
