| Abstract: | The extended fine structure of the X-ray absorption spectra of an atom in a chemical system depends on its orientation with respect to a polarized and nonpolarized X-ray beam. General equationes are developed to describe these dependences without consideration of spin-orbital interactions. Evidence is given for the validity of KOZLENKOV 's equation for the fine structure of polycrystalline solids, liquids, and gases. For the case of K absorption we obtain the equations formerly published by IZRAILEVA . Further, the explicite formulae for the LIII and LIII absorption fine structures are presented. |
