Hi Christopher,
Thank you so much for this!
Best,
Cameron Mollazadeh
PhD Student | Toney Group | CU Boulder
From: Christopher Chantler via Ifeffit
Date: Tuesday, February 4, 2025 at 11:14 PM
To: ifeffit@millenia.cars.aps.anl.gov
Cc: Christopher Chantler
Subject: [Ifeffit] Re: [EXT] Ifeffit Digest, Vol 276, Issue 2
[External email - use caution]
Hi Cameron See Trevorah R et al. regarding correction for absorption and self-absorption; Yes it is probably still suitable for EXAFS analysis subject to other criteria and constraints. Also see Schalken M et al. for the comparison of transmission
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Hi Cameron
See Trevorah R et al. regarding correction for absorption and self-absorption;
Yes it is probably still suitable for EXAFS analysis subject to other criteria and constraints.
Also see Schalken M et al. for the comparison of transmission EXAFS (largely without self-absorption) versus angle-dependent fluorescence EXAFS (which almost always has self-absorption and absorption in an angle-dependent manner) and how to extract the data.
Note that fluorescence data has a functional which is not directly that of a transmission or absorption measurement.
Best wishes
Chris
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Christopher Chantler, Professor, FAIP, Fellow American Physical Society
Editor-in-Chief, Radiation Physics and Chemistry
Member, CIT, CCN; Former Chair, International Union of Crystallography Commission on XAFS
International Radiation Physics Society, Former President
School of Physics, University of Melbourne, Parkville Victoria 3010 Australia
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Subject: [EXT] Ifeffit Digest, Vol 276, Issue 2
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Today's Topics:
1. Correcting for over absorption (cameron.mollazadeh@colorado.edu)
2. In reference to the prior overabsorption (Cameron Mollazadeh)
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Message: 1
Date: Mon, 03 Feb 2025 21:59:27 -0000
From: cameron.mollazadeh@colorado.edu
Subject: [Ifeffit] Correcting for over absorption
To: ifeffit@millenia.cars.aps.anl.gov
Message-ID:
<173861996743.2557830.8195040248000522658@millenia.cars.aps.anl.gov>
Content-Type: text/plain; charset="utf-8"
Hi Matthew,
I was re-reading the larch documentation as my data is suffering for over absorption and was wondering how I can go about implementing the correction factor. I am primarily using the data for EXAFS analysis and was also wondering if this technique is still questionable for EXAFS.
Thank you!
Cameron
------------------------------
Message: 2
Date: Mon, 3 Feb 2025 22:01:09 +0000
From: Cameron Mollazadeh
Subject: [Ifeffit] In reference to the prior overabsorption
To: Cameron Mollazadeh via Ifeffit
Message-ID:
Content-Type: multipart/related; boundary="_004_SN6PR03MB459217
5B3E3C1276F36D33F9F1F52SN6PR03MB4592namp_";
type="multipart/alternative"
Here is a photo of the “normalized” spectra
[cid:image001.png@01DB764C.751787B0]
Best,
Cameron Mollazadeh
PhD Student | Toney Group | CU Boulder
