title: On scattering effects for volume sources in low-energy photon spectrometry.
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.
authors.affiliation: CEA, LIST, Laboratoire National Henri Becquerel, Gif-sur-Yvette, F-91191, France. marie-christine.lepy@cea.fr
authors.forename: Marie-Christine
authors.initials: MC
authors.lastname: Lépy
authors.forename: Laurine
authors.initials: L
authors.lastname: Brondeau
authors.forename: Laurent
authors.initials: L
authors.lastname: Ferreux
authors.forename: Sylvie
authors.initials: S
authors.lastname: Pierre
mesh_terms: D003198:Computer Simulation; D004735:Energy Transfer; D015233:Models, Statistical; D009010:Monte Carlo Method; D017785:Photons; D011874:Radiometry / Q000379:methods*; D012542:Scattering, Radiation; D012984:Software; D013057:Spectrum Analysis / Q000379:methods*
keywords: Compton scattering; Efficiency calibration; Low-energy; Monte Carlo simulation; PENELOPE