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在分析我国天然本底辐射水平数据的基础上,推荐了室内外γ辐射剂量率、氡和子体平衡当量浓度的典型值。估算的我国居民所受天然辐射年剂量当量为2.3mSv,其中0.54mSv来自原生γ辐射,0.8mSv来自氡和它的短寿命子体。
Based on the analysis of the data of natural background radiation level in our country, the typical values of γ radiation dose rate, radon and equilibrium equivalent concentration of progeny are recommended. The estimated annual natural radiation dose equivalent of our inhabitants is 2.3 mSv, of which 0.54 mSv is from primary gamma radiation and 0.8 mSv is from radon and its short-lived progeny.