Quantitative performance measurements of bent crystal Laue analyzers for X-ray fluorescence spectroscopy

被引：8

作者：

Karanfil, C. ^{[1
]}

Bunker, G. ^{[2
,3
,4
]}

Newville, M. ^{[5
]}

Segre, C. U. ^{[2
,3
]}

Chapman, D. ^{[6
]}

机构：

[1] Univ Mugla, Fac Sci, Dept Phys, TR-48187 Kotekli Mugla, Turkey

[2] IIT, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA

[3] IIT, Dept Phys, Chicago, IL 60616 USA

[4] Quercus Xray Technol LLC, Oak Pk, IL 60304 USA

[5] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA

[6] Univ Saskatchewan, Dept Anat & Cell Biol, Saskatoon, SK S7N 5E5, Canada

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2012年 / 19卷

基金：

美国国家科学基金会;

关键词：

X-ray optics; X-ray fluorescence; X-ray spectroscopy; XAFS; bent crystal analyzer; X-ray filters; ABSORPTION SPECTROSCOPY; SILICON CRYSTAL; GEOMETRY; BRAGG;

D O I：

10.1107/S0909049512003937

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Third-generation synchrotron radiation sources pose difficult challenges for energy-dispersive detectors for XAFS because of their count rate limitations. One solution to this problem is the bent crystal Laue analyzer (BCLA), which removes most of the undesired scatter and fluorescence before it reaches the detector, effectively eliminating detector saturation due to background. In this paper experimental measurements of BCLA performance in conjunction with a 13-element germanium detector, and a quantitative analysis of the signal-to-noise improvement of BCLAs are presented. The performance of BCLAs are compared with filters and slits.

引用

页码：375 / 380

页数：6

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