Chapter

Introduction to diffraction

Peter Main

in Crystal Structure Analysis

Second edition

Published in print June 2009 | ISBN: 9780199219469
Published online September 2009 | e-ISBN: 9780191722516 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199219469.003.0001

Series: International Union of Crystallography Texts on Crystallography

Introduction to diffraction

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This introductory chapter provides information on some fundamental aspects of crystal structures and their diffraction of X-rays as a basis for the rest of the book. It describes electrons, atoms, molecules, and crystals scatter X-rays, leading to the observed diffraction pattern, and introduces concepts such as the reciprocal lattice, structure factors, Fourier transforms, Bragg's law for the geometry of diffraction, the phase problem encountered in crystallography, and the meaning of resolution and how it is related to the extent of the measured diffraction pattern.

Keywords: X-ray scattering; diffraction; Bragg's law; resolution; phase problem; Fourier transform; lattice; reciprocal lattice; structure factor

Chapter.  2219 words.  Illustrated.

Subjects: Crystallography

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