Experimental verification of dynamical diffraction focusing by a bent crystal wedge in Laue geometry

An experimental verification is presented of the fact that focusing by bent crystals in Laue geometry is strongly improved by combining geometrical focusing with Borrmann triangle focusing effects, as suggested from the X-ray dynamical diffraction theory.

DuMond analysis of bending in single crystals by Laue diffraction using σ–π polarization geometry

A three-dimensional DuMond formalism is proposed for a σ–π polarization geometry and a combined Bragg–Laue diffraction, and is employed to quantify the bending of single-crystal analysers.