Calculation of stopping power for partially stripped ions using an oscillator model
Faculty of Science, University of Kragujevac, R. Domanovic 12, 34000 Kragujevac, Serbia
Corresponding author: a email@example.com
Revised: 16 February 2007
Published online: 15 March 2007
Collision of swift ions with atoms was considered in this paper. The projectile and target atoms were modeled as assemblies of quantum oscillators and it was assumed that both, target and projectile could be excited or ionized, without charge exchange. The model presented here is an extension of the one given by Sigmund and Haagerup [Phys. Rev. A 34, 892 (1986)]. The number of electrons bound to the projectile, as a function of the projectile velocity, was used from Cabrera-Trujillo et al. [Phys. Rev. A 55, 2864 (1997)]. Contributions to energy loss from excitation of the projectile and targets were separately considered. It has been found that projectile excitation contributes up to 20% to the total energy loss in the lower energy region. Comparisons with other authors, including SRIM 2003, are also given and good agreement was found.
PACS: 34.50.Bw – Energy loss and stopping power / 95.30.Ky – Atomic and molecular data, spectra, and spectral parameters (opacities, rotation constants, line identification, oscillator strengths, gf values, transition probabilities, etc.)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007