| In this talk we will describe the atomistic methods used to model damage production and damage accumulation in irradiated metals and alloys, in particular, Fe and FeCr. The modeling will be focused on reproducing the experimental conditions of thin film irradiation, such as those being performed in Jannus. On one hand we will describe the use of large scale molecular dynamics simulations to model irradiation with Fe ions of energies between 100 and 300keV on thin films. The information obtained from these simulations is then used in a kinetic Monte Carlo model to study damage accumulation and to compare with in-situ TEM measurements of the irradiated material. We will discuss the effect of the primary damage in these results, including the initial cluster distribution obtained from different interatomic potentials. We propose, based on these results, a possible method to identify that potential that best describes the initial cluster size distribution from cascade damage. |
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