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.
出处
《核技术》
CAS
CSCD
北大核心
2001年第2期122-127,共6页
Nuclear Techniques
