[Ifeffit] Bkg removal problem

[Shelly Kelly]

Hi Alfred:

You should take a look at my book chapter. I go through a lot of
details on how to remove the background. If you want a copy just send
me an email directly and I'll send you a pdf.

Cheers,
Shelly
exafs at netzero.com

On Fri, Sep 10, 2010 at 8:42 AM, Alfred Hummer
<alfred.hummer at univie.ac.at> wrote:
> Hello,
>
> Currently I am working on a Ga XAS spectrum.
> I'm trying to extract the EXAFS data but I'm not sure if the background
> function is right, or how to set the right values.
>
> I played around with different setting for kmin and Rbkg.
> So far I know that Rbkg defines the cutoff for the bkg frequencies in the FT
> optimization and setting it to high leads to loss in information, as more
> high frequencies are included in the bkg.
>
> I also read that it is advisable to exclude strong white lines from the
> spline range (increasing kmin?). Would this a strategy in my case?
>
> I attached the project file.
>
> Maybe someone has a clue. The more I tried the bigger my uncertainty.
>
> best regards
>
> Alfred
>
>
> _______________________________________________
> Ifeffit mailing list
> Ifeffit at millenia.cars.aps.anl.gov
> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
>
>