Distorted-wave approach to reference-beam x-ray diffraction in transmission cases

Qun Shen
2000 Physical Review B (Condensed Matter)  
The conventional distorted-wave theory for x-ray scattering from surfaces is expanded to account for phasesensitive reference-beam diffraction in bulk crystals. The expanded theory, presented here for the transmission geometry that is suitable for biological specimens, provides a simple intensity formula with an explicit dependence on the phases of the structure factors. Numerical results show excellent agreement with full dynamical calculations. Based on this theory, a universal optimal
more » ... rsal optimal condition is proposed for maximizing the referencebeam interference effects in an experiment.
doi:10.1103/physrevb.61.8593 fatcat:322lntuievbftmep4lyz77o4ti