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

页码：1880 / 1883

页数：4

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