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由于建材工业的发展和生活水平的提高,住房中的放射性越来越被人们所关注,引起了许多国家的重视。西方一些工业发达的国家,先后颁布了限制建材中天然放射性核素含量的标准。我国于1986年以来也颁布了类似的标准,我们在执行这个标准中发现,由于建材的来源不同,使住房内的天然辐射水平有较大的差异。为此,我们专门对Υ外照射水平较高的住房中的放射性水平进行了测量,并就所致居住者的辐射剂量作了估算。
Due to the development of the building material industry and the improvement of living standards, the radioactivity in housing has drawn more and more attention and aroused the attention of many countries. Some developed countries in the west have promulgated standards that limit the content of natural radionuclides in building materials. Since 1986, similar standards have been promulgated in our country. In implementing this standard, we found that due to the different sources of building materials, there is a big difference in the level of natural radiation in housing. To this end, we have specifically measured the level of radioactivity in houses with a high level of exposure to external radiation and estimated the radiation doses to occupants.