Hi Kumar,
Just to echo Carlo's suggestion, you can import the Athena project into XAS
Viewer and do the pre-edge peak fitting there. Pre-edge peak fitting is
really significantly better in XAS Viewer than in Athena. There are more
lineshapes available (including a non-pseudo Voigt) choices, and you can
place upper/lower bounds on each variable in the fit. The Pre-Edge Peak
panel starts by wanting to define a "baseline" function describing the main
edge -- typically a line + a Lorentzian, and then you can add peaks from
there.
There is a video on using this at
https://www.youtube.com/watch?v=bd7PgaDpVc0
On Wed, Apr 12, 2023 at 10:53 PM Kumar Jena
Dear, all, I am a new XAS user. I have done preprocessing of my data in Athena and have been trying to export the XANES data as a .csv file. I would like to fit the pre-peak region to pseudo-Voigt line shapes to extract approximate relative intensities of various transitions (A1, A2, A3, and B). Attached is a screenshot from an article for your reference ( https://doi.org/10.1021/jp981644k).
Is it possible to do so in Athena?
Any help would be appreciated. Kind regards, Kumar
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