建筑材料氡析出率变化  

Variation of Radon Exhalation on Building Materials

作　　者：刘福东[1] 潘自强[2] 刘森林[1] 张永贵[3] 冀东[1,4] 王春红[1] 

机构地区：[1]中国原子能科学研究院辐射安全部,北京102413 [2]中国核工业集团公司科学技术委员会,北京100822 [3]中国建筑材料科学研究总院,北京100024 [4]南华大学核科学技术学院,湖南衡阳421001

出　　处：《原子能科学技术》2009年第3期271-274,共4页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10775187)

摘　　要：收集了4类共19个来自不同生产企业的建筑材料样品,对样品的放射性活度浓度和氡析出率进行测量。测量结果表明:若建筑材料的原材料相近,加工工艺相近的企业生产的建筑材料的氡析出率变化不大;若原材料差别较大,加工工艺不同,即使是生产同类建筑材料,成品建筑材料的放射性核素镭活度浓度相近,但氡析出率的差别很大。The 19 samples from different building material factories were collected for four kinds of building materials. The activity concentration and radon exhalation of building materials were measured. The radon exhalations of building materials are not obviously different if the component is same and the processes of building materials are similar. However, the radon exhalations of same kind of building material are greatly different if the components are different and the processes of building material are varied even if the activity concentrations of building material are similar.

关 键 词：氡析出率 加工工艺 活度浓度 建筑材料 

分 类 号：O613[理学—无机化学]