Performance of polycapillary X-ray optics for confocal energy-dispersive small-angle X-ray scattering

被引：16
|
作者：
Sun, Tianxi [1 ,2 ,3 ]
Peng, Song [1 ,2 ,3 ]
Liu, Zhiguo [1 ,2 ,3 ]
Sun, Weiyuan [1 ,2 ,3 ]
Ma, Yongzhong [4 ]
Ding, Xunliang [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
[4] Ctr Dis Control & Prevent Beijing, Beijing 100013, Peoples R China
来源：
JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2013年 / 46卷
基金：
中国国家自然科学基金;
关键词：
DIFFRACTION EXPERIMENTS; LENS;
D O I：
10.1107/S0021889813027088
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A confocal energy-dispersive small-angle X-ray scattering (EDSAXS) setup based on polycapillary optics was designed. In this confocal EDSAXS setup, a polycapillary slightly focusing X-ray lens (PSFXRL) and a polycapillary parallel X-ray lens (PPXRL) with a long input focal distance were placed confocally in the excitation channel and detection channel, respectively. This confocal configuration was helpful in improving the signal-to-noise ratio of the EDSAXS. The high gain in power density of the PSFXRL and PPXRL decreased the power requirement of the X-ray source for EDSAXS. The confocal EDSAXS technology could be used to perform nondestructive and in situ analysis of samples such as milk powder in its packaging.
引用
收藏
页码：1880 / 1883
页数：4
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