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 ex...@netzero.com On Fri, Sep 10, 2010 at 8:42 AM, Alfred Hummer <alfred.hum...@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@millenia.cars.aps.anl.gov > http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit > > _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit