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Anisotropy of NH4Ap Crystal X-Ray Susceptibility for Bragg Reflection Near Ck Absorption Edge

Published online by Cambridge University Press:  10 February 2011

A. V. Okotrub ,
G. S. Belikova ,
T. N. Turskaya  and
L. N. Mazalov
A. V. Okotrub
Affiliation:
Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia, spectrum@che.nsk.su
G. S. Belikova
Affiliation:
Institute of Crystallography RAS, Moscow, Russia
T. N. Turskaya
Affiliation:
Institute of Crystallography RAS, Moscow, Russia
L. N. Mazalov
Affiliation:
Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russia
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Abstract

Bragg reflection (001) of high-quality crystal of ammonium acid phthalate (2d = 52.28 A˚) is investigated in the region of CK absorption edge. First order reflection for this crystal is forbidden. Due to anisotropic additions, it appears only near CK edge. Two-crystal optical scheme was used for the measurement of the crystal reflectivity. As shown, the change of crystal azimuth in X-ray spectrometer leads to ability to control the resolution. Rotation effects of X-ray beam polarization on 90° angle is considered for the forbidden reflection.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 524: Symposium V – Application of Synchrotron Radiation Techniques…IV , 1998 , 161
Copyright
Copyright © Materials Research Society 1998

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References

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