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The Effect of Systematic Reflections on the (110) Extinction Distance in Molybdenum
Author(s) -
Sheinin S. S.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670210124
Subject(s) - extinction (optical mineralogy) , molybdenum , beam (structure) , systematic error , optics , physics , computational physics , mathematics , materials science , statistics , metallurgy
The dependence of the (110) extinction distance in molybdenum on Δθ, the deviation from the exact Bragg condition, has been investigated. The results indicate that near the exact Bragg condition (0° < Δθ < 0.5°) the two‐beam theory is in good agreement with experiment. For larger values of Δθ the effects of systematic reflections become important. The agreement between the multi‐beam theory and experiment is excellent for values of Δθ greater than 1.25°. However, for intermediate values of Δθ where the depth periodicities are complex, neither the two‐ or multi‐beam theories give an adequate description of the experimental results obtained.