German Aerospace Center, Institute of Aerospace Medicine, Linder Höhe, 51147 Cologne, Germany.
J Radiol Prot. 2022 Apr 8;42(2). doi: 10.1088/1361-6498/ac5be0.
The International Commission on Radiation Units and Measurements recently proposed new operational quantities for external radiation exposure. Among those, the ambient dose is intended to replace the ambient dose equivalent as estimator for the effective dose. Following its definition, the measurement of the ambient dose requires a much more detailed knowledge about the radiation field than the ambient dose equivalent. The implications for radiation protection in aviation concerning galactic cosmic radiation that would follow the adoption of the ambient dose as operational quantity at flight altitudes were investigated in this work using model calculations. It was found that the ambient dose is about 10% higher than the ambient dose equivalent for conditions relevant in commercial aviation and overestimates the effective dose by about 30%.
国际辐射单位和测量委员会最近提出了新的外照射操作量。其中，环境剂量旨在取代环境剂量当量，作为有效剂量的估算量。根据其定义，环境剂量的测量需要比环境剂量当量更详细地了解辐射场。本工作采用模型计算研究了在飞行高度采用环境剂量作为操作量时，对航空辐射防护中银河宇宙辐射的影响。结果表明，对于商业航空中相关的条件，环境剂量比环境剂量当量约高 10%，并高估了有效剂量约 30%。
