Related Experiment Video
Updated: Jun 4, 2026

Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Theoretical and experimental investigation of x-ray diffraction by a lamellar multilayer amplitude grating
1Laboratoire de Chimie Physique, unité associee au CNRS, U.A. 176, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France Commissariat à l'Energie Atomique, Centre d'Etudes de Limeil Valenton, 94195 Villeneuve Saint Georges Cedex, France Laboratoire pour I'Utilisation du Rayonnement Electromagnétique (LURE), Université Paris Sud, 91405 Orsay, France.
Abstract:
We present experimental and theoretical studies of the diffraction by an x-ray lamellar multilayer amplitude grating. The main diffraction properties of such a device are given. Experimental efficiency curves are obtained at 800 eV photon energy using synchrotron radiation. The features observed in these curves are identified and interpreted by means of two theoretical methods. Particular emphasis is given to structures observed for the first time which had been theoretically predicted.
Related Concept Videos
X-ray Crystallography
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Determination of Crystal Structures
X-ray Diffraction of Biological Samples
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...

