van der Spoel W H, van der Graaf E R, de Meijer R J
Health Phys. 1997 May;72(5):766-77; appendix 778. doi: 10.1097/00004032-199705000-00014.
To validate a model for radon transport in soil, measurements of diffusive radon transport under well-defined and controlled conditions have been made in a homogeneous column of dry sand with an air-filled volume on top. This volume simulates a crawl space. The measurements concern time-dependent diffusive transport with several different crawl-space heights and steady-state diffusive transport with different crawl-space ventilation rates. This study forms part of an extensive validation which will also cover more complex situations (e.g., advective transport, presence of pore-water). Properties of the sand that are presently being used in the radon transport model were determined from independent measurements. The comparison between model calculations and experimental results showed a good correspondence with maximum deviations of less than 10%.
为验证土壤中氡迁移模型，在顶部有空气填充空间的均匀干砂柱中，于明确且可控的条件下进行了扩散氡迁移测量。该空间模拟了爬行空间。测量涉及不同爬行空间高度下随时间变化的扩散迁移以及不同爬行空间通风速率下的稳态扩散迁移。本研究是广泛验证工作的一部分，该验证还将涵盖更复杂的情况（如平流迁移、孔隙水的存在）。目前氡迁移模型中使用的砂的特性通过独立测量确定。模型计算与实验结果的比较显示出良好的一致性，最大偏差小于10%。
