建材产品中放射性的研究  

Radioactive reserch of building material

作　　者：史卫亚[1] 鲁祖惠[1] 胥爱军[1] 赵维娟[1] 李友明[1] 

机构地区：[1]郑州大学物理工程学院,郑州450052

出　　处：《核技术》2001年第2期122-127,共6页Nuclear Techniques

摘　　要：应用γ能谱仪和最小二乘法解析谱方法，研究了３１种地板砖中放射性核素的含量，发现不同地板砖中Ｕ、Ｔｈ、Ｒａ和４０Ｋ的放射性含量有较大的差别。Radionuclides in 31 pieces of ground bricks from different sources were determined by using the γ spectrometry. The spectra were resolved by the least square method. The contents of U, Th, Ra and 40K in them spread in a wide range. Values of some bricks products were above the limits of the state standard for radiahazards in building meterials.

关 键 词：放射性比活度 建筑材料 当量浓度 地板硅 放射卫生 放射性核素 辐射剂量测试 

分 类 号：TU502.5[建筑科学—建筑技术科学] R144[医药卫生—公共卫生与预防医学]