Measurements of gamma-ray background spectra at spallation neutron source beamlines

The gamma-ray background spectra of VESUVIO and INES beamlines, at the ISIS spallation neutron source, were measured with an HPGe spectrometer. These measurements are intended to provide information on typical gamma-ray background spectra in spallation neutron source environments, with special regard to beamlines employing gamma-ray sensitive detectors. Sources and creation processes of more than 60 gamma-ray lines in the energy range 80 keV-12 MeV were identified by using specifically developed data analysis software.