Energy distributions of 7.3 keV electrons passing through iron films for depth-selective Moessbauer spectroscopy

The energy spectra of 7.3 keV electrons passing through iron films were measured with a high resolution electron spectrometer by use of a thin 57Co source. The energy resolution of the spectrometer was set for 1.3% at 7.3 keV. The thicknesses of iron films for electron scatterers were 63, 121, 175, 279 and 385 A. From the measured energy spectra we deduced the energy distributions for a monolayer source. The method of analysis is described in detail. The present energy distributions are in fair agreement with those of the Monte Carlo calculation of Liljequist et al. The weight coefficients for the depth-selective conversion electron Moessbauer spectroscopy are presented for energy resolutions of 1, 2 and 3%. (orig.)