Scanning X-ray microanalysis of bottom sediments using synchrotron radiation from the BINP VEPP-3 storage ring

被引：21
|
作者：
Dar'in A.V. [1 ]
Kalugin I.A. [1 ]
Rakshun Ya.V. [2 ]
机构：
[1] Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk
[2] Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk
来源：
Bulletin of the Russian Academy of Sciences: Physics | 2013年 / 77卷 / 02期
关键词：
Angular divergence - Continuous spectrum - Experimental stations - Geochemical indicators - Optimum conditions - Polycapillary lens - Spatial resolution - X-ray microanalysis;
D O I：
10.3103/S106287381302010X
中图分类号：
学科分类号：
摘要：
Combining the features of synchrotron radiation (low angular divergence and continuous spectrum, natural polarization, and high intensity) with the use of modern X-ray optics (polycapillary lenses) and registering devices results in a new quality of analysis: measuring picogram concentrations of a broad set of elements with micron spatial resolution. Using a dedicated experimental station and developed methodologies, numerous scanning microanalyses of bottom sediments is performed to obtain a time series of geochemical indicators of paleoclimate in the Central Asian region. The detection limit under optimum conditions is 5 × 10-5% with a spatial resolution of ∼100 μm. © 2013 Allerton Press, Inc.
引用
收藏
页码：182 / 184
页数：2
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