A Device and Method for measuring Activity concentrations of Radon decay products

摘要

The method of measuring the radioactivity of a radon decay product according to the present invention includes a first step of continuously measuring the alpha count from a filter paper obtained by collecting radon decay products using an alpha counting device and measuring the alpha counting rate of the modified Tsivoglou A second step of calculating the first radioactivity concentration of the radon decay product by the method of the present invention and a correction coefficient by using the measured alpha counting factor to correct the error according to the time delay in the measurement of the alpha coefficient device And a third step of calculating the second radiation concentration of the radon decay product by applying the calculated correction coefficient to the first radiation concentration.