Abstract
SynopsisWe present a semi-classical numerical integration method for studying electron loss processes in ion collisions with water molecules. Capture and ionization cross section are calculated in the intermediate-high energy range, and the kinetic energy distribution of the ejected electrons is analyzed. The results are compared with those obtained with a classical Monte Carlo method.
Highlights
We have carried out non-perturbative, classical and semi-classical, calculations of ionization cross sections in ion-water collisions at impact energies between 10 keV/u and 1 MeV/u, obtaining the kinetic energy distribution of the ejected electrons
We have implemented a Phillips-Kleinman operator [4] to prevent the electron from falling into an occupied orbital of the water molecule
A mask function is introduced at the edge of the grid in order to absorb the ionization and capture fluxes
Summary
We have carried out non-perturbative, classical and semi-classical, calculations of ionization cross sections in ion-water collisions at impact energies between 10 keV/u and 1 MeV/u, obtaining the kinetic energy distribution of the ejected electrons.
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