Focal construct geometry for high intensity energy dispersive x-ray diffraction based on x-ray capillary optics

被引：9
作者：
Li, Fangzuo [1 ,2 ,3 ]
Liu, Zhiguo [1 ,2 ,3 ]
Sun, Tianxi [1 ,2 ,3 ]
Jiang, Bowen [1 ,2 ,3 ]
Zhu, Yu [1 ,2 ,3 ]
机构：
[1] Beijing Normal Univ, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[3] Beijing Radiat Ctr, Beijing 100875, Peoples R China
来源：
JOURNAL OF CHEMICAL PHYSICS | 2016年 / 144卷 / 10期
基金：
中国国家自然科学基金;
关键词：
ANNULAR BEAM; SYNCHROTRON-RADIATION; POLYCAPILLARY OPTICS; IN-SITU; DIFFRACTOMETRY; GLASS;
D O I：
10.1063/1.4943268
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We presented a focal construct geometry (FCG) method for high intensity energy dispersive X-ray diffraction by utilizing a home-made ellipsoidal single-bounce capillary (ESBC) and a polycapillary parallel X-ray lens (PPXRL). The ESBC was employed to focus the X-rays from a conventional laboratory source into a small focal spot and to produce an annular X-ray beam in the far-field. Additionally, diffracted polychromatic X-rays were confocally collected by the PPXRL attached to a stationary energy-resolved detector. Our FCG method based on ESBC and PPXRL had achieved relatively high intensity diffraction peaks and effectively narrowed the diffraction peak width which was helpful in improving the potential d-spacing resolution for material phase analysis. (C) 2016 AIP Publishing LLC.
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页数：7
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