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人们已经注意到建筑材料(以下简称建材)是构成人类生活重要的放射性环境。人在室丙活动时受到建材中放射性核素产生的γ射线照射。随着工业的发展和废渣的综合利用,建材的放射性有增高的趋势。有人认为,人类接受的γ辐射大部份来自建材。因此,了解至掌握建材的γ辐射水平对建材企业的放射性质量控制、放射医学及放射卫生学有着重要意义。本文报告1988～1989年我们对广西700家建材厂(场)的现场成品堆作的测定统计分析结果。测定对象以生产厂(场)家的主要类型建材成品堆为测量对象,进行现场测定。所测样品代表了占全区年总产量75％以上的同类建材成品。测定方法采用FD-71A型闪烁辐射
It has been noticed that building materials (hereinafter referred to as building materials) constitute an important radioactive environment for human life. During the activity of C, people were exposed to γ-rays produced by radionuclides in the building materials. With the development of industry and the comprehensive utilization of waste residue, the radioactivity of building materials tends to increase. Some people think that the majority of human exposure to gamma radiation comes from building materials. Therefore, it is of great significance to understand the level of gamma radiation to building materials so as to control the radioactive quality of building materials enterprises, radiology and radiology. This paper reports the results of the statistical analysis of the on-site finished product stacks of 700 building materials factories in Guangxi from 1988 to 1989. Measurement object To the production plant (field) home of the main types of building materials finished pile for the measurement of the object, on-site determination. The samples tested represent the finished building materials of the same kind which account for more than 75% of the total output of the whole district. Measurement method using FD-71A flashing radiation