Accession Number : AD0278109

Title :   DYNAMICAL THEORY OF THE REFLECTION OF X-RAYS BY NON-PERFECT CRYSTALS, PART I

Corporate Author : PARIS UNIV (FRANCE)

Personal Author(s) : TAUPIN,D.

Report Date : MAR 1962

Pagination or Media Count : 1

Abstract : This report includes: CRYSTALLINE TEXTURE OF BaTiO3 CRYSTALS, PART II. Final technical rept., by C. Bousquet, M. Lambert and others. 31 Mar 62.A generalization of Zachariasen's Dynamical Theory is derived for the case of distorted or non-perfect crystals and non-plane waves; this treatment does not separate the wavefields in the crystal medium and leads to a partial differential equation system which can only be numerically solved. A detailed application to bent and uniformly distorted crystalsis given, which is a generalization of our former dynamical theory. A rough calculation of dislocation cross sections for the Bragg Case is then reported. Some figures are given, which indicate the range of utility of the X-Ray method for the determination of the perfection of Silicon crystals. Experimental measurements of reflecting powers of imperfect Silicon crystals have been made. The agreement with calculated values is rather satisfactory. (Author)

Descriptors :   CRYSTAL STRUCTURE, CRYSTALS, DISTORTION, EQUATIONS, SOLID STATE PHYSICS, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE