UNCERTAINTIES IN THE MEASUREMENT OF AIRBORNE RADON DAUGHTERS

Abstract

Quantification of the precision of the many methods for measuring RaA, RaB and RaC concentrations has not heretofore included the effects of concentration and flowrate uncertainties. These uncertainties are here taken into account in the modified Tsivoglou method, resulting in better optimized counting intervals. The optimized modified Tsivoglou method which is developed is demonstrated experimentally to have a 37% better precision than the original modified Tsivoglou method. The optimization approach developed may also be applied to other radon daughter measurement methods.