[Ifeffit] Bkg removal problem

2010-09-10 Thread Alfred Hummer
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

Re: [Ifeffit] Bkg removal problem

2010-09-10 Thread 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 ex...@netzero.com On Fri, Sep 10, 2010 at 8:42 AM, Alfred Hummer

[Ifeffit] (Reposted) K-space vs R-spce fitting

2010-09-10 Thread Lezama Pacheco, Juan Salvador
Reposting, just notice no line breaks, sorry! Juan Dear All: First of all, nicely done you guys! This is indeed a set great of tools the community really appreciates it and I have been putting into heavy use. I have and issue though that has been making me scratch my head from time to

Re: [Ifeffit] (Reposted) K-space vs R-spce fitting

2010-09-10 Thread Matt Newville
Hi Juan, On Fri, Sep 10, 2010 at 7:29 PM, Lezama Pacheco, Juan Salvador jlez...@slac.stanford.edu wrote: Reposting, just notice no line breaks, sorry! Juan Dear All: First of all, nicely done you guys! This is indeed a set great of tools the community really appreciates it and I have been

[Ifeffit] (Reposted) K-space vs R-spce fitting

2010-09-10 Thread Lezama Pacheco, Juan Salvador
Hi Matt: Thanks so much for your answer. Let's see if I can make it more clear this time. Should dk have an effect on the actual fit, if it is performed in k-space? As I said, I found out that by changing dk (in k space) (keeping (kmin,kmax) constant) values change around 15%, so that