Abstract:
In order to establish a quick and easy method to measure thorium-232 radioactivity concentration in the environmental soil, the powdered tablet sample preparation was used. The thorium quality content in environmental soil measured by energy dispersive fluorescence spectrometer, and converted into thorium-232 radioactive concentration, was compared with calculated radioactive concentration of thorium-232 measured by the high purity germanium gamma spectrometer. The relative deviation is between 6.12% and 29.46%. Paired
t test shows that the two sets of data are consistent. The precision and accuracy of the method are good. It demonstrates that the quick and easy method of fluorescence spectrometer can be used to analyze thorium-232 radioactive concentration in the soil.