Effects of in-target Compton-scattering in lanthanum fluorescence spectra

A study was made of the continuum adjacent to the Kα1 and Kα2 peaks (the ‘shoulder’) in lanthanum fluorescence spectra. The fluorescence was induced by 59.537 keV γ-rays from a 241Am source. The spectra were observed with an La2O3-loaded paraffin target (the ‘La target’). To limit the observations to the scattering in the target, a collimator was used in front of the germanium detector, which strongly reduced the near-detector scattering....