Measuring 226Ra and 232Th activity in soil and vegetation samples using a method of double γ-coincidences
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A coincidence method for measuring radium and thorium activity has been developed using the PRIPYAT-2M gamma-ray coincidence spectrometer, with six NaI(Tl) detectors and registration geometry close to 4π. It was tested by measuring soil samples from the Northern region of Montenegro, as well as vegetation samples from the same region. The results showed a good agreement with ones obtained by the HPGe spectrometer.
KeywordsGamma-coincidences Radium Thorium Soil Vegetation
A portion of the research was supported by the Ministry of Education and Science of Montenegro (under the Contract 05-1/3-3354). The authors also thank S. K. Andrukhovich (Stepanov Institute of Physics, Minsk) for help in the modification of the spectrometer PRIPYAT-2M.
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