2017
DOI: 10.1016/j.apradiso.2016.12.035
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Study of particular problems appearing in NORM samples and recommendations for best practice gamma-ray spectrometry

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Cited by 6 publications
(2 citation statements)
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“…The 163.3 keV and 205.3 keV -peaks are subject to significant summing-incoincidences, due to the cascades at 19.6 keV-143.7 keV and 19.6 keV-185.7 keV and also these -peaks suffer from summing-out effects (García-Talavera et al, 2001). The 143.7 keV peak, in turn, is affected by interference from -ray emission at 144.2 keV by daughter 223 Ra (Dowdall et al, 2004), whilst 228 Ac emissions at 204.0 keV (0.11%) interfere with the 205.3 keV peak (Baumgartner et al, 2017). In light of the foregoing and the low activity concentration of 235 U in building materials, this method is of scant utility.…”
Section: Cam Filementioning
confidence: 99%
“…The 163.3 keV and 205.3 keV -peaks are subject to significant summing-incoincidences, due to the cascades at 19.6 keV-143.7 keV and 19.6 keV-185.7 keV and also these -peaks suffer from summing-out effects (García-Talavera et al, 2001). The 143.7 keV peak, in turn, is affected by interference from -ray emission at 144.2 keV by daughter 223 Ra (Dowdall et al, 2004), whilst 228 Ac emissions at 204.0 keV (0.11%) interfere with the 205.3 keV peak (Baumgartner et al, 2017). In light of the foregoing and the low activity concentration of 235 U in building materials, this method is of scant utility.…”
Section: Cam Filementioning
confidence: 99%
“…Aunque estos fotópicos son los que hemos utilizados para la determinación del 235 U (Janković & Todorović, 2011), sufren summing-in y summing-out coincidentes (García-Talavera et al, 2001). Por otra parte, existen interferencias del 228 Ac en 204,0 keV (0,11%) (Baumgartner et al, 2017) y del 223 Ra en 144,2 keV (3,22%). Estas posibles fuentes de error en la medida fueron minimizadas realizando la medida de las muestras en varios detectores y utilizando la corrección de interferen-cias que proporciona Genie 2000 (Brundrett et al, 1996).…”
Section: Grupounclassified