摘要
在一幢砖混结构楼房建造过程中,实验测定了各层楼房地面、墙体和混凝土预制板等各部分建材对室内γ空气吸收剂量率的贡献。实测结果表明,由建材产生的室内γ剂量率主要来源于砖墙和地面,其它部分建材的贡献很小。对本文所介绍的这类墙体厚度为24cm左右的砖混结构楼房,按4π-无限厚介质模式计算室内γ空气吸收剂量率时,应乘以数值为0.52的系数进行修正。
In the coures of construction of a building structured withbrickes and concrets, the indoor gamma air absorbed dose rates wereseperately measured from the floors,brickwalls and prefabricated platesof concrets, etc.It suggested that the indoor gamma dose rates frombuilding materials are mainly attributed to the brick walls and the floors.A little contribution comes from other building materials.For thebuilding presented in this paper,the dose rates can be calculated througha 4π-infinite thick model with a correction factor of 0.52.
出处
《辐射防护》
CAS
CSCD
北大核心
1990年第2期132-135,共4页
Radiation Protection
关键词
建筑材料
放射性
室内
Γ辐射
Building Material
Radioactivity
Indoor
Gamma Radiation
Dose Rate
