Theoretical stopping power of copper for protons using the shellwise local plasma approximation

Details Theoretical stopping power of copper for protons using the shellwise local plasma approximation Theoretical stopping power of copper for protons using the shellwise local plasma approximation

2009-04-08

arxiv.org/abs/0904.1386v1

Physics

Atomic Physics

3 pages, 1 figure

Scientific paper

We present a theoretical study on the energy loss by protons in solid copper. The ab initio shellwise local plasma approximation (SLPA) is employed for the inner-shells, and the Mermin dielectric function for the valence electrons. The partial contribution of each sub-shell of target electrons is calculated separately, including the screening among the electrons of the same binding energy. Present results are obtained using the SLPA and the known Hartree-Fock wave functions for copper. The theoretical curves are compared with the experimental data available and with the semi-empirical srim08 values, showing very good agreement in a large energy region (5 keV-30 MeV).

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