不同表面起伏曲线晶体的x射线衍射动力学理论。

IF 1.9 4区 材料科学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Andrey V Karpov, Dmitry V Kazakov, Vasily I Punegov
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引用次数: 0

摘要

针对高分辨率三晶x射线衍射的情况,建立了具有表面起伏的晶体的x射线衍射动力学理论。详细研究了梯形、正弦和抛物线棒型晶体。对混凝土实验条件下的x射线衍射问题进行了数值模拟。提出了一种简单的解决晶体起伏重建问题的新方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Dynamical theory of X-ray diffraction by crystals with different surface relief profiles.

Dynamical theory of X-ray diffraction by crystals with different surface relief profiles.

A dynamical theory is developed of X-ray diffraction on a crystal with surface relief for the case of high-resolution triple-crystal X-ray diffractometry. Crystals with trapezoidal, sinusoidal and parabolic bar profile models are investigated in detail. Numerical simulations of the X-ray diffraction problem for concrete experimental conditions are performed. A simple new method to resolve the crystal relief reconstruction problem is proposed.

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来源期刊
Acta Crystallographica Section A: Foundations and Advances
Acta Crystallographica Section A: Foundations and Advances CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY
CiteScore
2.60
自引率
11.10%
发文量
419
期刊介绍: Acta Crystallographica Section A: Foundations and Advances publishes articles reporting advances in the theory and practice of all areas of crystallography in the broadest sense. As well as traditional crystallography, this includes nanocrystals, metacrystals, amorphous materials, quasicrystals, synchrotron and XFEL studies, coherent scattering, diffraction imaging, time-resolved studies and the structure of strain and defects in materials. The journal has two parts, a rapid-publication Advances section and the traditional Foundations section. Articles for the Advances section are of particularly high value and impact. They receive expedited treatment and may be highlighted by an accompanying scientific commentary article and a press release. Further details are given in the November 2013 Editorial. The central themes of the journal are, on the one hand, experimental and theoretical studies of the properties and arrangements of atoms, ions and molecules in condensed matter, periodic, quasiperiodic or amorphous, ideal or real, and, on the other, the theoretical and experimental aspects of the various methods to determine these properties and arrangements.
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