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Anomalous absorption of X‐rays in imperfect crystals. A quantitative proof on the basis of the transmission rocking curve (Laue case)
Author(s) -
Stephan D.
Publication year - 1970
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19700050213
Subject(s) - absorption (acoustics) , diffraction , asymmetry , imperfect , feal , basis (linear algebra) , transmission (telecommunications) , optics , absorption cross section , eigenfunction , physics , computational physics , condensed matter physics , materials science , mathematics , quantum mechanics , cross section (physics) , geometry , computer science , telecommunications , philosophy , linguistics , alloy , composite material , intermetallic , eigenvalues and eigenvectors
Not only for perfect but also for imperfect crystals transmission rocking curves show tails with a light‐dark asymmetry outside an interference maximum which result from anomalous absorption in both cases. The analysis of the tails provides a quantitative statement on the anomalous absorption coefficient of the dynamical theory of X‐ray diffraction. Measurements taken on Ge, LiF, and FeAl are discussed.