花岗石材料氡析出率调查及分析  

Investigation and Analysis of Radon Exhalation Rate on Granite

作　　者：梁东升[1] 吕力行[1] 张洁[2] 程五一[2] 张琴[2,3] 

机构地区：[1]昆明理工大学国土资源学院,昆明莲花校区6500932 [2]中国地质大学(北京)工程技术学院,北京100083 [3]中国中化集团公司,北京100031

出　　处：《河南科学》2015年第1期82-87,共6页Henan Science

基　　金：教育部专业综合改革试点项目(53900264072E)

摘　　要：采用积累法,通过测氡仪RDA7测定出花岗石氡浓度.结合核行业标准中对氡析出率的理论,计算得到所选取的北京市某石材市场的19种花岗石的氡析出率,探究影响氡析出率的因素,为今后在选择花岗石装修或制定防氡降氡措施方面提供指导性建议.研究发现不同地区、不同颜色的花岗石氡析出率有差别.因此,尽量选用氡析出率水平较低的石材用于居室内装饰,降低所接受的辐射伤害.In this paper,we adopted the accumulation method,with the RDA7 to determine radon concentration ongranite,combing with the theoretical calculations of the radon exhalation rate,which is from nuclear industrystandard,we obtained the results of radon exhalation rate on 19 kinds of granite,which are selected from a stonemarket in Beijing. We explored the factors of radon exhalation rate,to provide guidance and advice on the choice ofgranite decoration and the measures of radon prevention and reduction. The study found that different regions anddifferent colors lead to the differences on radon exhalation rate. Therefore,it was suggested to use the stone withlower level of radon exhalation rate in order to reduce the radiation damage.

关 键 词：花岗石 氡析出率 调查 差异 

分 类 号：TU502[建筑科学—建筑技术科学]