Active dosimetry on recent space flights.
Active dosimetry on recent space flights.
复制标题
最近太空飞行的主动剂量测定。
DOI：
10.1093/oxfordjournals.rpd.a032839
复制
发表时间：
1999
影响因子：
1
通讯作者：
G. Reitz
中科院分区：
文献类型：
--
作者：
R. Beaujean;J. Kopp;G. Reitz
在美国航天局的三次航天飞机-和平号飞行任务期间（倾角51.6度，高度约380公里），利用基于两个硅平面探测器的望远镜对低地球轨道航天器内部的辐射照射进行了调查。计数和剂量率分布进行了测量，以及单独的线性能量转移（LET）光谱，银河宇宙射线（GCR）和捕获的辐射在南大西洋异常（SAA）遇到的。根据ICRP 60，在0.1-120 keV μ m-1范围内从转换的LET光谱（在水中）推导出有效的品质因数。硅中测得的使命平均剂量率分别为98-108 microGy d-1和137-178 microGy d-1的GCR和SAA的贡献。推导出的有效品质因子为2.95-3.29（GCR）和1.18-1.25（SAA），导致使命平均剂量当量率为631-716 microSv d-1的可比三个任务。
The radiation exposure inside the spacecraft in low earth orbit was investigated with a telescope based on two silicon planar detectors during three NASA shuttle-to-MIR missions (inclination 51.6 deg, altitude about 380 km). Count and dose rate profiles were measured, as well as separate linear energy transfer (LET) spectra, for the galactic cosmic rays (GCR) and the trapped radiation encountered in the South Atlantic Anomaly (SAA). Effective quality factors are deduced from the converted LET spectra (in water) in the range 0.1-120 keV micrometer-1 according to ICRP 60. Measured mission averaged dose rates in silicon are in the range 98-108 microGy d-1 and 137-178 microGy d-1 for the GCR and SAA contributions, respectively. The deduced effective quality factors are 2.95-3.29 (GCR) and 1.18-1.25 (SAA), resulting in mission averaged dose equivalent rates of 631-716 microSv d-1 for the comparable three missions.