摘要
通过考虑砂土等6种均匀土壤及典型层状土壤的情况,对土壤氡分布进行数值模拟,对扩散系数、孔隙度、降水等对土壤氡分布有影响的因素进行研究,并对因土壤中镭分布而致氡异常分布进行相应分析。分析发现,土壤中的氡浓度随土壤深度的增加而增大。
The numerical computation of radon distribution in soils was implemented, considering 6 different types of homogeneous soils including sands, etc. and typical lay- ered soil. Thereafter researches were mainly focused on factors which affect the distri- bution, such as diffusion coefficient, porosity, and rainfall. The situation of abnormal radon distribution in soil caused by radium distribution was also analyzed. The results show that the radon concentration increases with depth of soil.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2012年第3期370-374,共5页
Atomic Energy Science and Technology
关键词
土壤氡
取样深度
影响因素
soil radon
sampling depth
influencing factor
