Description
This volume collects the proceedings of the 23rd International Course of Crystallography, entitled “X-ray and Neutron Dynamical Diffraction, Theory and Applications,” which took place in the fascinating setting of Erice in Sicily, Italy. It was run as a NATO Advanced Studies Institute with A. Authier (France) and S. Lagomarsino (Italy) as codirectors, and L. Riva di Sanseverino and P. Spadon (Italy) as local organizers, R. Colella (USA) and B. K. Tanner (UK) being the two other members of the organizing committee. It was attended by about one hundred participants from twenty four different countries. Two basic theories may be used to describe the diffraction of radiation by crystalline matter. The first one, the so-called geometrical, or kinematical theory, is approximate and is applicable to small, highly imperfect crystals. It is used for the determination of crystal structures and describes the diffraction of powders and polycrystalline materials. The other one, the so-called dynamical theory, is applicable to perfect or nearly perfect crystals. For that reason, dynamical diffraction of X-rays and neutrons constitutes the theoretical basis of a great variety of applications such as: the techniques used for the characterization of nearly perfect high technology materials, semiconductors, piezoelectric, electrooptic, ferroelectric, magnetic crystals, the X-ray optical devices used in all modem applications of Synchrotron Radiation (EXAFS, High Resolution X-ray Diffractometry, magnetic and nuclear resonant scattering, topography, etc. ), and X-ray and neutron interferometry. Basis of the Dynamical Theory of Diffraction. Dynamical Theory of X-Ray Diffraction-I. Perfect Crystals; A. Authier. Diffraction Topography. X-Ray Diffraction Topography Principles and Techniques; H. Klapper. X-Ray Standing Waves. X-Ray Standing Waves; J.R. Patel. Theory and Applications of High Resolution Diffractometry. Theoretical Description of Multiple Crystal Arrangements; V. Holy, P. Mikulik. Multiple-Beam Diffraction. Multiple Bragg Scattering and the Phase Problem in X-Ray Diffraction perfect Crystals; R. Colella. X-Ray and Neutron Interferometry. X-Ray and Neutron Interferometry. Basic Principles and Applications; R. Colella. 21 Additional Articles. Index.
