Open AccessSTATISTICAL DYNAMICAL DIFFRACTION IN NEARLY PERFECT CRYSTALS
Author(s) -
Ming Li,
Mai Zhang,
Cui Shu-Pan
Publication year - 1994
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.43.84
Subject(s) - diffraction , formalism (music) , dynamical theory of diffraction , physics , homogeneous , debye , crystal (programming language) , lattice (music) , statistical physics , optics , condensed matter physics , computational physics , computer science , acousto optics , diffraction grating , art , musical , acoustics , visual arts , programming language
A new expression of Takagi-Taupin equations is applied to nearly perfect crystals with statistical lattice distortion, with which a formalism of the dynamical diffraction is proposed. A static Debye-Waller factor E is introduced to characterize the crystal. A solution of the equations is presented which describe the intensity distribution due to a narrow incident wave in the topography of a statistically homogeneous crystal. The application of this theory to the measuring of the micro-defects in crvstals is discussed.