A correction of EXAFS experimental spectra on core level width

A problem of core level width deconvolution in EXAFS spectra is discussed. A method has been developed which allows a correction of experimental spectra. A special iterative algorithm of solving the integral equation has been proposed. The method has several advantages over other previous ones such as a high stability to statistical noise, a good convergence. Model numerical experiments have been carried out. An EXAFS spectrum of polycrystalline Pd with a core level width Γ=6.1 eV is presented as an example where the broadening effect is essential.