%0 Journal Article %T 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 %+ Laboratoire de métrologie de la radioactivité dans l'environnement (IRSN/PSE-ENV/SAME/LMRE) %+ Département d'Electronique, des Détecteurs et d'Informatique pour la Physique (ex SEDI) (DEDIP) %+ Laboratoire National Henri Becquerel (LNHB) %A Xu, Jiaxin %A Bobin, Jérôme %A de Vismes Ott, Anne %A Bobin, Christophe %A Malfrait, Paul %Z IRSN %< avec comité de lecture %@ 0969-8043 %J Applied Radiation and Isotopes %I Elsevier %V 182 %P 110109 %8 2022-04 %D 2022 %R 10.1016/j.apradiso.2022.110109 %K Decision threshold %K Full spectrum analysis %K Gamma spectrometry %K Spectral unmixing %K Uncertainty %K ionizing radiation %K radioactivity %K signal processing %K spectrum analysis %K gamma-rays %K spectrometry %K spectral unmixing %K decision threshold %K metrology %K radionuclide %K Monte-Carlo %K simulation %K particle transport %K gamma-ray spectrometry characteristic limits full spectrum analysis spectral unmixing %K gamma-ray spectrometry %K characteristic limits %K full spectrum analysis %Z Physics [physics]/Nuclear Experiment [nucl-ex] %Z Computer Science [cs]/Signal and Image Processing %Z Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]Journal articles %X Poisson-statistics based spectral unmixing has previously been shown to be anefficient analysis tool for the activity estimation of radionuclides from gammaray spectroscopy measurements. In this paper, we present the quantificationof characteristic limits (decision threshold, detection limit and limits of thecoverage interval) for the metrological use of such spectral unmixing algorithms.The proposed approaches are evaluated and validated with simulated spectra ofHPGe and NaI measurements by comparing the results to characteristic valuescalculated from Monte Carlo simulations %G English %2 https://irsn.hal.science/irsn-04072716/document %2 https://irsn.hal.science/irsn-04072716/file/article_JiaxinXu.pdf %L irsn-04072716 %U https://irsn.hal.science/irsn-04072716 %~ CEA %~ IRSN %~ DSM-IRFU %~ DRT %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ CEA-DRF %~ LIST %~ DM2I %~ UNIVERSITE-PARIS-SACLAY %~ GS-COMPUTER-SCIENCE %~ GS-PHYSIQUE %~ PSEENV %~ SAME %~ DIN