Institute for Nuclear Problems, 11 Bobruiskaya, 220030 Minsk, Belarus.
J Environ Radioact. 2012 May;107:51-5. doi: 10.1016/j.jenvrad.2011.12.013. Epub 2011 Dec 30.
Regardless of the surface area of the site, the spatial distribution of radioactive contamination of soils with ¹³⁷Cs for Chernobyl fallout is described by a lognormal distribution. Moreover, the spatial pattern of the radioactive contamination of soil is random geometrical multifractal field. Due to that, any contamination spot, when studied in detail, decomposes into a multitude of small spots decomposing further into a multitude of smaller spots etc. Similar patterns are apparently characteristic for fallout of other radionuclides, the Fukushima fallout, as well as atmospheric fallout of non-radioactive dust and aerosols.
无论场地面积如何，切尔诺贝利沉降物的土壤放射性污染¹³⁷Cs 的空间分布都符合对数正态分布。此外，土壤放射性污染的空间模式是随机几何多重分形场。正因为如此，任何污染点在详细研究时，都会分解成许多小的点，这些小的点进一步分解成更小的点等等。类似的模式显然也是其他放射性核素、福岛核事故沉降物以及非放射性尘埃和气溶胶大气沉降物的特征。
