Asymmetrically cut crystals as optical elements for highly collimated x-ray beams
- 1 February 1995
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 66 (2) , 1506-1509
- https://doi.org/10.1063/1.1145892
Abstract
Asymmetrically cut perfect crystals, in both the Laue and Bragg geometries, are examined as single crystal monochromators for x‐ray beams that are collimated to a small fraction of the Darwin width, as is typical in experiments with coherent x rays. Both the Laue and asymmetric Bragg geometries are plagued by an inherent chromatic aberration that increases the beam divergence much beyond that of the symmetric Bragg geometry. Measurements from a recent experiment at the ESRF are presented to compare Si(220) (symmetric Bragg), diamond(111) (asymmetric Laue), and diamond(111) (symmetric Bragg inclined) geometries.Keywords
This publication has 2 references indexed in Scilit:
- Dynamical Diffraction of X Rays by Perfect CrystalsReviews of Modern Physics, 1964
- Theory of the Use of More Than Two Successive X-Ray Crystal Reflections to Obtain Increased Resolving PowerPhysical Review B, 1937