Chris, <br><br>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&#39;t move it back to the pre-edge).  <br>
<br>More detailed information on setting Eo and background removal can be found here:  <br>
<br><a href="http://cars9.uchicago.edu/%7Eravel/software/doc/Athena/html/index.html" target="_blank">http://cars9.uchicago.edu/~ravel/software/doc/Athena/html/index.html</a><br><br>Also, <a href="http://www.xafs.org">www.xafs.org</a> is an excellent resource for more information.<br>
<br>-Richard<br><br>
<br><div class="gmail_quote">On Wed, Jul 22, 2009 at 6:23 PM, Chris Patridge <span dir="ltr">&lt;<a href="mailto:patridge@buffalo.edu" target="_blank">patridge@buffalo.edu</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">


I forgot to post a bitmap of the spectra of the previous message.  Thank you all.<br><font color="#888888">
<br>
-- <br>
Christopher J. Patridge<br>
Graduate Student<br>
SUNY Buffalo - Dept of Chemistry<br>
716-645-6800 x 2110<br>
315-529-0501<br>
<br>
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