Spectral windows analysis method for monitoring anthropogenic radionuclides in real-time environmental gamma-ray scintillation spectrometry
This paper proposes an analysis methodology based on the spectral windows technique aimed for
environmental real-time gamma-ray spectra obtained with scintillation detectors. The method permits
us to monitor activity concentrations of selected isotopes, such as anthropogenic radionuclides like
137 Cs and 131 I, by removing the Compton scattering plus other external contributions and resolving
peak overlapping within any window. Activity concentrations are presented for 137 Cs, 131 I, 214 Bi,
and 214 Pb when applying the method to a monitor using a LaBr 3 (Ce) detector. The method avoids
false-positive and false-negative results of anthropogenic radionuclides in the presence of
radiation from natural origins by obtaining activity concentrations that correspond to those
obtained by a Gaussian fitting commercial software.
Source: Journal of Radiological Protection - Category: Physics Authors: E Prieto, R Casanovas and M Salvad รณ Source Type: research
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