Chris,
In cases where intense pre-edge features are observed, such as the one you
attached, you should manually set the Eo and not accept the Athena
defaults. I usually start with half-way up the absorption edge (you can
look at the derivative and move the Eo value to the maximum in the
derivative; however, make sure you don't move it back to the pre-edge).
More detailed information on setting Eo and background removal can be found
here:
http://cars9.uchicago.edu/~ravel/software/doc/Athena/html/index.htmlhttp://cars9.uchicago.edu/%7Eravel/software/doc/Athena/html/index.html
Also, www.xafs.org is an excellent resource for more information.
-Richard
On Wed, Jul 22, 2009 at 6:23 PM, Chris Patridge
I forgot to post a bitmap of the spectra of the previous message. Thank you all.
-- Christopher J. Patridge Graduate Student SUNY Buffalo - Dept of Chemistry 716-645-6800 x 2110 315-529-0501
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