Determination of anomalous scattering factors for zinc and silver in Al-Zn-Ag alloys

The anomalous scattering factors of zinc and silver in samples of Al-rich Al-Zn-Ag have been measured near their K-absorption edges. EXAFS spectra obtained from the Stanford Synchrotron Radiation Laboratory were converted to the imaginary part of the atomic scattering factor f'' using the optical theorem. With a knowledge of f''(E), f', the real part of the atomic scattering factor, was determined from the Kramers-Kronig dispersion relation.