On scattering effects for volume sources in low-energy photon spectrometry

Marie-Christine Lépy 1, * Laurine Brondeau 1 Laurent Ferreux 1 Sylvie Pierre 1
* Corresponding author
1 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : In this study, different aspects of the Compton scattering inside volume sources are illustrated using experimental approach and Monte Carlo simulation. For the low-energy range (below 100 keV) scattered events represents around 30% of the whole spectrum. Influence of the source-detector geometry is discussed. The scattering effects induce strong differences in spectrum shape for different geometrical conditions. This should influence efficiency transfer factors. A new approach is proposed, including the scattered events, to avoid complex peak area determination.
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Marie-Christine Lépy, Laurine Brondeau, Laurent Ferreux, Sylvie Pierre. On scattering effects for volume sources in low-energy photon spectrometry. Applied Radiation and Isotopes, Elsevier, 2013, 81, pp.71 - 75. ⟨10.1016/j.apradiso.2013.03.071⟩. ⟨cea-01802412⟩



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