Anomalous Dispersion of X-Rays, in Terms of the Classical Theory of Vibration

Abstract

Physical principles involved in anomalous X-ray scattering is discussed, by referring to the classical theory of forced vibrations of an oscillator. It is emphasized that the energy dissipation and the phase shift between force and displacement are an inseparable result due to friction. A brief historical review is given of studies of X-ray anomalous dispersion in these sixty years.