X-ray spectrometry using polycapillary X-ray optics and position sensitive detector

被引:18
作者
Ding, XL [1 ]
Xie, JD [1 ]
He, YJ [1 ]
Pan, QL [1 ]
Yan, YM [1 ]
机构
[1] Beijing Normal Univ, Inst Low Energy Nucl Phys, Beijing Radiat Ctr, Beijing 100875, Peoples R China
关键词
X-ray; polycapillary X-ray optics; MXRF; position sensitive X-ray spectrometry;
D O I
10.1016/S0039-9140(00)00387-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Polycapillary X-ray optics (capillary X-ray lens) are now popular in X-ray fluorescence (XRF) analysis. Such an X-ray lens can collect X-rays emitted from an X-ray source in a large solid angle and form a very intense X-ray microbeam which is very convenient for microbeam X-ray fluorescence (MXRF) analysis giving low minimum detection limits (MDLs) in energy dispersive X-ray fluorescence (EDXRF). A new method called position sensitive X-ray spectrometry (PSXS) which combines an X-ray lens used to form an intense XRF source and a position sensitive detector (PSD) used for wavelength dispersive spectrometry (WDS) measurement was developed recently in the X-ray Optics Laboratory of Institute of Low Energy Nuclear Physics (ILENP) at Beijing Normal University. Such a method can give high energy and spacial resolution and high detection efficiency simultaneously. A short view of development of both the EDXRF using a capillary X-ray lens and the new PSXS is given in this paper. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码:17 / 22
页数:6
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