Elastic peak electron spectroscopy (EPES) is used for determination of inelastic mean free paths in silver and copper for electrons with energy of 250, 500, 1000 and 1500 eV. Namely, the elastic scattering coefficient η e is measured with a retarding field analyser (LEED optics) and calculated by computer simulation for different values of the inelastic mean free path λ. A value of λ giving the best fit for the measured and calculated η e is taken as the experimental inelastic mean free path. Results obtained are in agreement with those known from the literature. Equivalency between the values of η e obtained by analytic calculation and by computer simulation is found.
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Doliński et al. (1988) studied this question.
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