Thorium Determination in Intercomparison Samples and in some Romanian Building Materials by Gamma Ray Spectrometry
作者:A. Pantelica、I. I. Georgesecu、M. D. Murariu-Magureanu、I. Margaritescu、E. Cincu
DOI:10.1093/oxfordjournals.rpd.a006659
日期:2001.10.1
Network Intercomparison), as well as in some Romanian building materials: sand, wood, tufa, asbestos-cement. cement mill dust, coal fly ash, bricks, and tile (28 samples) was deterimined by gamma ray spectrometry. For the building materials, 226Ra, 40K and 137Cs specific activities were also measured. The results were compared with the Romanian legal norms concerning the highest admissible levels for
锆英砂,th矿石和a液体样品中的ium含量(欧盟实验室网络比较),以及一些罗马尼亚建筑材料中的sand:沙子,木材,石灰华,石棉水泥。用伽马射线光谱法测定水泥厂的粉尘,粉煤灰,砖和瓦(28个样品)。对于建筑材料,还测量了226 Ra,40K和137Cs的比活度。将结果与罗马尼亚有关232Th,226Ra最高允许水平的法律规范进行了比较。和40K放射性。以及以前在我们实验室中对类似类型样品确定的Th,U和K浓度值。