Proton and neutron production from GAMMA-2 spallation source irradiated by relativistic proton beams

In the frame of international concern about long-lived nuclear waste, the construction of an effective accelerator driven system for the transmutation or incineration of fission products and actinides is a promising task. A spallation source consisting of a Pb target surrounded by paraffin moderator was studied by irradiation with relativistic proton beams. The spatial distribution of secondary proton and slow neutron were determined using the natCd activation technique and their multiplicity was calculated in order to verify the transmutation efficiency of the specific spallation source and to estimate the tolerance limit of source construction materials.