STATISTICAL DYNAMICAL DIFFRACTION IN NEARLY PERFECT CRYSTALS | Zendy

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STATISTICAL DYNAMICAL DIFFRACTION IN NEARLY PERFECT CRYSTALS

Author(s) -

LI MING,

MAI ZHEN-HONG,

CUI SHU-PAN

Publication year - 1994

Publication title -

acta physica sinica

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.

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