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  • Title: Gamma dose rate calculation and mapping of piemonte (North-West Italy) from gamma spectrometry soil data.
    Author: Losana MC, Magnoni M, Bertino S, Procopio S, Facchinelli A, Sacchi E.
    Journal: Radiat Prot Dosimetry; 2004; 111(4):419-22. PubMed ID: 15550714.
    Abstract:
    In this study the air gamma dose rate map of Piemonte, a region in the North-West of Italy, was produced from gamma spectrometry soil data. Soil samples collected in 110 different sites of Piemonte were analysed with Hyperpure Germanium (HPGe) detectors (30% relative efficiency), which allow the evaluation of the activity concentrations of natural radionuclides and (137)Cs. Then, using the available mathematical models, the gamma absorbed dose rate in air due to radionuclides was calculated. The contribution of the cosmic radiation to the total absorbed dose rate, which depend on the site altitude was also evaluated and added to the soil contribution. Finally, the map of the whole region was obtained by fitting the dose rate values of the different sites with kriging algorithms.
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