A simple method for mitigating error in the fixed-offset of a double-crystal monochromator

被引：1
|
作者：
Sterbinsky, George E. [1 ]
Heald, Steve M. [1 ]
机构：
[1] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Lemont, IL 60439 USA
来源：
JOURNAL OF SYNCHROTRON RADIATION | 2021年 / 28卷
关键词：
X-ray monochromator; double-crystal monochromators; X-ray absorption spectroscopy; X-ray instrumentation; X-RAY-ABSORPTION; FINE-STRUCTURE; FEEDBACK-SYSTEM; BEAM LINE; SPECTROSCOPY; EXAFS; XAFS; NSLS; STABILIZATION; DIFFRACTION;
D O I：
10.1107/S1600577521008626
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In order to maintain a constant monochromatic synchrotron X-ray beam height for all energies, the separation between the crystals of a double-crystal monochromator is typically adjusted, via translation of the second crystal, while X-ray energy is varied, via rotation of the crystal pair. The ability to accurately translate the second crystal requires precise knowledge of the separation between the two crystals and, when present, crystal miscuts. Here, a simple method for calibrating the crystal gap from measured variation in the X-ray beam height that eliminates error in the fixed beam offset is provided.
引用
收藏
页码：1737 / 1746
页数：10
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