Structure of the Fe and Ni L X-ray spectra

Fe-L and Ni-L X-ray spectra induced by electron impact were analyzed. The measurements were made on bulk samples using a commercial wavelength dispersive spectrometer, and the spectra were processed with a parameter optimization method previously developed. This procedure allowed for the determination of characteristic energies, relative transition probabilities and natural linewidths. The results obtained are compared to the data found in the literature, when available. Satellite and radiative Auger emissions were also analyzed, energy shifts and relative intensities being determined. Many of these parameters were determined for the first time, which was possible due to the robustness of the spectral processing method used. The line profile introduced here takes into account the differential attenuation at both sides of the absorption edge.