Activity Measurements and Dependence of Radon Exhalation Rate on Physical Sample Parameters in Soil Samples

摘要

The measurements of radon concentration and exhalation rates usually consist of measurements of radon contents in an emanation chamber (can) containing a certain sample of material under investigation as a function of radon growth time. The procedure seems to be simple. However, results of radon exhalation rates measurement of the same investigated material strongly depend on physical sample parameters and that is why the results from different laboratories usually differ. In the present paper, we have reported on some factors such as sample mass and sample granulation- on- the radon exhalation rate measurements. To investigate the effect of above mentioned factors, we have used can technique.