Thinova L, Fronka A, Rovenska K
Czech Technical University in Prague, FNSPE, Brehova 7, 115 19 Praha 1, Czech Republic.
Radiat Prot Dosimetry. 2011 May;145(2-3):159-65. doi: 10.1093/rpd/ncr070.
It is well known that there are great variations in radon concentrations in the soil gas on building sites. The concentration may sometimes vary by more than two orders of magnitude. The tectonic structure of the bedrock is one of the factors that influence the intensity of the radon outflow. The simple ARES geophysical method [automatic resistivity system--main unit with standard accessories, multi-electrode cable sections (MCS5)--eight electrodes per 5 m spacing] was used in various modes (Schlumberger, Dipole-Dipole and Pole-Dipole arrays) for in situ tectonic structure determination. The radon concentration in the soil gas was measured using the same network as for the resistivity measurements. The radon measurements were also followed up by in situ gamma spectrometry measurements. The behaviour of the radon concentration in the soil gas was correlated with the detected tectonic non-homogeneities. This pilot study opened up new questions for future analysis.
众所周知，建筑工地上土壤气体中的氡浓度存在很大差异。浓度有时可能相差两个数量级以上。基岩的构造结构是影响氡流出强度的因素之一。简单的ARES地球物理方法[自动电阻率系统——带有标准附件的主机、多电极电缆段（MCS5）——每5米间距有八个电极]以各种模式（施伦贝格尔、偶极-偶极和极-偶极阵列）用于原位构造结构测定。土壤气体中的氡浓度使用与电阻率测量相同的网络进行测量。氡测量之后还进行了原位伽马能谱测量。土壤气体中氡浓度的行为与检测到的构造不均匀性相关。这项初步研究为未来的分析提出了新问题。
