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Article Dans Une Revue Applied Radiation and Isotopes Année : 2022

Analysis of gamma-ray spectra with spectral unmixing — Part I: Determination of the characteristic limits (decision threshold and statistical uncertainty) for measurements of environmental aerosol filters

Résumé

Poisson-statistics based spectral unmixing has previously been shown to be an efficient analysis tool for the activity estimation of radionuclides from gammaray spectroscopy measurements. In this paper, we present the quantification of characteristic limits (decision threshold, detection limit and limits of the coverage interval) for the metrological use of such spectral unmixing algorithms. The proposed approaches are evaluated and validated with simulated spectra of HPGe and NaI measurements by comparing the results to characteristic values calculated from Monte Carlo simulations
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irsn-04072716 , version 1 (24-07-2023)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Jiaxin Xu, Jérôme Bobin, Anne de Vismes Ott, Christophe Bobin, Paul Malfrait. Analysis of gamma-ray spectra with spectral unmixing — Part I: Determination of the characteristic limits (decision threshold and statistical uncertainty) for measurements of environmental aerosol filters. Applied Radiation and Isotopes, 2022, 182, pp.110109. ⟨10.1016/j.apradiso.2022.110109⟩. ⟨irsn-04072716⟩
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