METHOD OF RADON'S DAUGHTER PRODUCTS' IA TENT ENERGY CONCENTRATION QUICKER OPERATING DETERMINATION IN ATMOSPHERE OF OPENINGS AND IN OTHER OBJECTS

摘要

The solution concerns the method of a fast indication of concentration of latent energy of radon daughter products in mine working and other construction atmospheres. The method is based on an even suction of an air sample through a filter and on the measuring of radioactivity of the aerosol deposit retained in the filter. The radioactivity is measured in check intervals. The difference of the value of the radioactivity of the aerosol deposit in the last check interval is used for estimation. This difference is then converted to units of the latent energy of the radon daughter products by a conversion factor.