Investigation of Disequilibrium Between Radon Isotopes and Its Decay Products in Ground Atmosphere
Radioactive disequilibrium between radon isotopes and their decay products in ground atmosphere was investigated. The simulation results of radon and decay products transport in atmosphere were given and compared with experimental data. It was found that radioactive disequilibrium between radon and its decay products is deter− mined by aggregate influence of some factors: height above ground level; vertical wind velocity; turbulent diffusion coefficient; amount of precipitations. It was established that error of estimations of equilibrium factor and radon vol− umetric activity in ground atmosphere, which were made on the base of measured radon decay products activities, can reach 75 % in dependence on weather conditions.