For environmental radioactivity measurement reference material, using the γ spectrometer to measure Ra-226, Th-232 and ......

In this work, the natural radionuclide concentrations of the 226Ra, 228Ra, 232Th and 40K were estimated from samples of ......

本文报告了用γ谱仪分析测定的我国24个省(自治区)的563个煤样品中天然放射性核素含量的结果,并与国内外同类工作进行了比较。我国......