Step 1: Pre-processing
All raw data collected are automatically saved in a binary .mda format, which requires conversion into ascii format prior to analysis.
If you collected data in transmission, data conversion will be done at the beamline using an mda2ascii script.
If you collected data in fluorescence, data conversion will be done using Sakura, which can be downloaded here:
Step 2: Analysis
You may choose to use any data package that you are familiar with / desire. At the beamline we often use the IFEFFIT package for data reduction (Athena) and data analysis (Artemis). Further information and downloads can be found here: http://cars9.uchicago.edu/ifeffit/.
The Demeter software package (Athena, Artemis, Hephaestus) can be found here: https://bruceravel.github.io/demeter/
The beamline scientists are experienced in XAS data analysis and can provide some general advice in this regard. Please note, however, that it is not a specific task of the beamline scientists to analyse data for users and thus, should you wish to, please pursue their assistance in a reasonable manner.
Online Workshops and Tutorials
Helpful tutorials can be found online to assist with XAS data analysis. For example:
Software help with Athena/Atemis: https://bruceravel.github.io/demeter/
IFEFFIT mailing list: https://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit/
A webpage sponsored by the International XAFS Society with a wealth of resources: https://xafs.xrayabsorption.org/
Online Bruce Ravel XAS courses here: https://vimeo.com/search?q=bruce+ravel+xas+course
and here: https://vimeo.com/channels/exafs
Online EXAFS shell fitting workshop by Matt Siebecker: https://www.youtube.com/watch?v=Il_wRqhqFM4&feature=youtu.be
Shelly Kelly et al. (2008) Soil Science Society of America, Methods of Soil Analysis. Part 5. Mineralogical Methods. Analysis of soils and minerals using X-ray Absorption Spectroscopy, Chapter 14.
Available online here: https://www.semanticscholar.org/paper/Analysis-of-Soils-and-Minerals-Using-X-ray-Kelly-Hesterberg/8e4c088837e9c0cf8d5d96d6c1b528ff23b9c1c9
EXAFS for Everyone (2013) by Scott Calvin - copy available at the beamline