This article has carried out a large number of radioactive testing on six common building materials according to the national standard GB 6566-2010"Radionuclide Limit of Building Materials",and collected specific activities of 6 kinds of building materials radioactive nuclides at different equilibrium time nodes,namely radionuclide radium-226,thorium-232 and potas-sium-40.The regularity of the detection results of these three specific activities at different equilibrium times was analyzed,and obtain the conclusion that the specific activity of radioactive nuclides radium-226,thorium-232 and potassium-40 is most stable and close to the true value when the equilibrium time is 7 days.
关键词
建筑材料/放射性比活度/照射指数
Key words
building materials/radioactivity/irradiation index
维普
万方数据