2D Laue focusing of X-ray radiation by a double-crystal system

被引:0
|
作者
T. Tchen
机构
[1] Lomonosov Sate Academy of Fine Chemical Technology,
来源
Technical Physics | 2002年 / 47卷
关键词
Radiation; Spectral Characteristic; Astigmatism; Bend Crystal; Laue Diffraction;
D O I
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中图分类号
学科分类号
摘要
The theory of the dynamic 2D focusing of an X-ray wave upon its Laue diffraction by a system of two bent crystals is developed. The reflecting planes of the crystals are perpendicular to their surfaces. 2D focusing is shown to be highly sensitive to the bending radius of the crystals and to the difference in their thicknesses. The effect of astigmatism on 2D Laue focusing is described, and conditions for stigmatic focusing are found. One-dimensional focusing inside the crystals is discussed. The spectral characteristics of a double-crystal 2D-focusing spectrometer are considered.
引用
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页码:666 / 672
页数:6
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