Automated analysis of XANES: A feasibility study of Au reference compounds
Automated analysis of XANES: A feasibility study of Au reference compounds
复制标题
XANES 自动分析:Au 参考化合物的可行性研究
DOI:
10.1088/1742-6596/712/1/012070
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Chang S
中科院分区:
文献类型:
--
作者:
Chang S
With the advent of high-throughput and imaging core level spectroscopies (including X-ray absorption spectroscopy, XAS, as well as electron energy loss spectroscopy, EELS), automated data processing, visualisation and analytics will become a necessity. As a first step towards these objectives we examined the possibilities and limitations of a simple automated XANES peak fitting procedure written in MATLAB, for the parametrisation of XANES features, including ionisation potentials as well as the energies and intensities of electronic transitions. Using a series of Au L 3-edge XANES reference spectra we show that most of the relevant information can be captured through a small number of rules applied to constrain the fits. Uncertainty in this strategy arises mostly when the ionisation potential (IP) overlaps with weak electronic transitions or features in the continuum beyond the IP, which can result in ambiguity through multiple equally good fits.
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