Energy distributions in quasi-elastic peak electron spectroscopy

We present a theoretical description of the spectra of electrons elastically scattered from thin double layered Au-C samples. The analysis is based on very large scale Monte Carlo simulations of the recoil and Doppler effects in reflection and transmission geometries of the scattering at a fixed angle of 44.3° and a primary energy of 40 keV. The effect of the multiple scattering on intensity ratios, peak shifts and broadenings, for four cases of measurement geometry and layer thickness, are shown. Our Monte Carlo simulations are in good agreement with the experimental observations.