Monte-Carlo study of the effect of small admixtures of iron atoms on the energy absorbed by water irradiated by near-Fe1s-threshold photons

Abstract

Energy absorption processes in iron-doped water under photon irradiation are studied by Monte Carlo simulation with accurate accounting for the cascade decays of vacancies in the electron shells of ionized atoms. Small admixtures of cascade-explosive iron atoms to water are shown to noticeably enhance the energy absorbed near the sites of initial photoionization when incident photon energy exceeds that of the Fe1 s ionization threshold.