Charge-state-dependent energy loss of slow ions. II. Statistical atom model
Charge-state-dependent energy loss of slow ions. II. Statistical atom model
Wilhelm, R.; Möller, W.
A model for charge-dependent energy loss of slow ions is developed based on the Thomas-Fermi statistical model of atoms. Using a modified electrostatic potential which takes the ionic charge into account, nuclear and electronic energy transfers are calculated, the latter by an extension of the Firsov model. To evaluate the importance of multiple collisions even in nanometer-thick target materials we use the charge-state-dependent potentials in a Monte Carlo simulation in the binary collision approximation and compare the results to experiment. The Monte Carlo results reproduce the incident charge-state dependence of measured data well [see R. A. Wilhelm et al., Phys. Rev. A 93, 052708 (2016)], even though the experimentally observed charge exchange dependence is not included in the model.
Keywords: low energy ions; ion charge state; stopping power; energy loss; highly charged ion; charge exchange
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
Related publications
- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 22636) publication
-
Physical Review A 93(2016), 052709
DOI: 10.1103/PhysRevA.93.052709
Cited 19 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-22636