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Ground Gamma-ray survey by HPGe: Numerical simulations and comparison between field and laboratory measurements

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8 Author(s)
Federico Di Paolo ; Dept. of Phys., Univ. of Roma Tre, Rome, Italy ; Wolfango Plastino ; Francesco Bella ; Mario De Vincenzi
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A comparison between two methodologies for environmental gamma-ray spectrometry were carried out. Laboratory analyses on soil samples were used to test the accuracy of a hand-held portable instrument. Numerical simulations were performed to calibrate detectors and evaluate the actual response of the instrument in the field. Measurements were carried out in a volcanic area, in order to detect the presence of natural radionuclides such as 238U and 232Th chains daughters and 40K. Results show a good agreement between the two methodologies. Some discrepancies are correlated to the presence of vegetation in the monitoring area, and can give a proxy to infer the presence of 222Rn degassing.

Published in:

Natural Computation (ICNC), 2011 Seventh International Conference on  (Volume:4 )

Date of Conference:

26-28 July 2011