Uncertainties of displacement cross-sections for iron and tungsten at neutron irradiation energies above 0.1 MeV

Uncertainty of atomic displacement cross-sections was estimated for iron and tungsten irradiated with neutrons of intermediate energy. The TALYS and ECIS codes were applied for recoil energy distribution calculations in the energy range 0.1 to 150 MeV; the CASCADE code implementing the intranuclear cascade evaporation model was used at the energies from 100 MeV to 3 GeV. The NRT model and the arc-dpa approach were applied for calculation of the number of stable defects produced under irradiation.