Anomalous X-ray scattering factors calculated from experimental absorption spectra

Abstract

Anomalous X-ray scattering factors at photon energies close to absorption edges are calculated by applying the dispersion relation to absorption spectra. Absolute absorption coefficients are obtained from measured relative spectral distributions normalised to known absolute cross sections. The calculated scattering factors are corrected for relativistic contributions. Results for Ni, Cu, Zn, and Zr close to the K-edges and for Ta, W, Pt and Au near the respective L-edges are presented and compared with published scattering factors.