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为了解建筑材料中γ射线辐射水平，掌握放射性核素在建筑材料中的分布，我们对呼和浩特市地区７３家企业生产的建筑材料成品进行了γ射线照射量率的测量。并对个别γ辐射水平较高的建筑材料进行了２２６Ｒａ、２３２Ｔｈ、４０Ｋ比活度的测定。１ 测量仪器和分析方法γ辐射水?
In order to understand the radiation level of γ-rays in building materials and to find out the distribution of radionuclides in building materials, we measured γ-ray emission rate of finished products of building materials produced by 73 enterprises in Hohhot. The specific activities of 226Ra, 232Th and 40K were measured on some building materials with high γ radiation. 1 measuring instruments and analytical methods gamma radiation water?