Calculation of displacement damage cross-section for charged particles at energies up to 100 GeV

Abstract

Accurate prediction of displacement damage is essential for the safety of nuclear materials irradiated by neutrons, gammas and charged particles. Displacement damage cross-sections are used for the calculation of displacement damage rate. With the development of accelerator facilities and spallation neutron sources, displacement damage rate calculations in these facilities require the availability of displacement damage cross-sections for charged particles. In the present work, new arc-dpa model parameters were obtained for aluminum, iron, copper and tungsten. The displacement damage cross-sections for protons, deuterons, and alpha-particles at energies up to 100 GeV are calculated using the standard NRT and the arc-dpa model with improved parameters for these materials. Calculated displacement damage cross-sections for charged particles calculated using the arc-dpa model with new parameters agree well with available experimental data.