Kumar V, Ramachandran T V, Prasad R
Department of Applied Physics, Z.H. College of Engineering and Technology, Aligarh Muslim University, India.
Appl Radiat Isot. 1999 Jul;51(1):93-6. doi: 10.1016/s0969-8043(98)00154-7.
Conventional building materials and by-products from coal power plants which are being used or have the potential for use in buildings in India were analysed for natural radioactivity due to the presence of 226Ra, 232Th and 40K using gamma-ray spectroscopy. The materials examined in this work showed the radioactivity levels below the limit estimated from radium equivalent activity the criterion formula for gamma-activity suggested for acceptable radiation doses attributable to building materials in OECD countries.
利用伽马射线能谱分析了印度正在使用或有可能用于建筑的传统建筑材料以及煤电厂副产品中由于存在镭-226、钍-232和钾-40而产生的天然放射性。这项工作中检测的材料显示出放射性水平低于根据镭当量活度估算的限值，该限值是经合组织国家针对建筑材料可接受辐射剂量建议的伽马活度标准公式。
