Abstract:
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MAP2XANES is an intuitive Jupyter notebook that automatizes the analysis of
synchrotron X-ray fluorescence imaging and X-ray absorption spectroscopy
for the characterization of complex and heterogeneous samples. The notebook
uses basic modules and functions from Numpy, Scipy, Pandas, iPywidgets and
Matplotlib libraries for a powerful data reduction process that, in just a few
clicks, guides the user through the visualization of elemental maps, spaceresolved
absorption spectra and their automatized analysis. In particular, by
means of linear combination fit of the XANES spectra, the notebook determines
the chemical species distribution in the sample under investigation. The direct
output of the analysis process is the correlation between the different elemental
distributions and the spatial localization of the chemical species detected. An
application to mineralogy is thus presented, analyzing the Mn2+, Mn3+ and Mn4+
distribution in a mineral sample of hausmannite (Mn2+Mn2
3+O4), courtesy of
the Museum of Natural Science of Barcelona. |