Computer simulation of the backscattering and implantation of hydrogen and helium

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Abstract
The backscattering from and the implantation of 0.5–10-keV hydrogen and helium in Au is investigated with the MARLOWE and TRIM computer codes. The following are found in this paper: (1) The results of the MARLOWE and the much faster TRIM codes are in satisfactory agreement. (2) The influence of potential parameters and energy loss models (LSS and Oen-Robinson) is mainly on the heights and to less extent on the shapes of the energy distributions of backscattered particles. (3) The experimental data from the preceding paper favor the use of a potential for the calculation, which is weaker than the Molière potential. This can be simulated by using a screening length smaller than the Firsov value.

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