【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。更多还原

【Abstract】 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.更多还原