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Study of the monolithic x‐ray focusing lens and its application in microbeam x‐ray fluorescence analysis
Author(s) -
Xie Jindong,
Yan Yiming,
Ding Xunliang,
He Yejun,
Pan Qiuli
Publication year - 2000
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/1097-4539(200007/08)29:4<305::aid-xrs425>3.0.co;2-q
Subject(s) - microbeam , lens (geology) , optics , focal length , x ray , x ray fluorescence , aperture (computer memory) , angular aperture , materials science , numerical aperture , physics , fluorescence , wavelength , acoustics
A model of theoretical simulations of a monolithic x‐ray focusing lens is described. These calculations are compared with experimental measurements of the lens. For the Mo Kα line, a measured focal spot diameter of lens were about 30 µm. Compared with an aperture of equivalent size located at the output focal distance without the lens, a power density gain of about 1500 was obtained. The application of the lens in microbeam x‐ray fluorescence analysis reduced the minimum detection limits for transition elements down to the 10 −13 g level. Copyright © 2000 John Wiley & Sons, Ltd.