Experimental verification of spallation inventory calculations

Monte Carlo calculations and gamma-ray spectrometry measurements have been made for a highly irradiated tungsten target from a proton-driven spallation neutron source. A comparison of the calculated and measured activities of 60Co and 172Lu in the radionuclide inventory shows surprisingly good agreement. •Experimental measurement of radionuclide activities calculated by Monte Carlo inventory codes.•Gamma-ray spectroscopy of proton-driven tungsten spallation target.•Measurements made through walls of transport flask.