The simulation of proton beam passage through thin gold films

The results of calculating the energy spectra protons transmitted and reflected from thin layers gold are presented. simulation compared with experimental data. It is shown that stopping measurement affected by such factors as multiple scattering, geometry experiment, morphology roughness target. An analysis angular dependence for particles passing through a film makes it possible to obtain information about interaction potential between particle solid. obtained on agree data experiments reflection surface solid differ markedly determined scattering in gas phase. Keywords: spectra, distribution, interatomic potentials, electronic stopping, straggling.