Re: [Ifeffit] XAFS of poly-metals contaminated soil samples

ginner (like me), a very good review for practical as well as theoretical issues is "Analysis of soils and minerals using X ray absorption spectroscopy" (Kelly et al. 2008). Good luck, Hana * > Thank you very much. &g

[Ifeffit] More for dealing the LCF

when sum of components is different than one in these heterogeneous soil samples (with unknown composition and probably high effect of disorder)? 2. Any reason not to constrain all fractions to be positive? Thanks, Hana ___ Ifeffit mailing list

Re: [Ifeffit] Worm in SixPack

r > > Why don't you ask Sam Webb at SSRL about it? Sixpack is his 'baby': samw...@slac.stanford.edu Best, Hana > ___ > Ifeffit mailing list > Ifeffit@... > http://millenia.cars.aps.anl.gov/mailman/listinf

[Ifeffit] LCF with different scales

h the same steps size, and a calibration standard was used)? 2. For harder situation; when different steps were used - I found that sixpack (according to its manual) interpolating all spectra to the same energy grid - does this solve the problem? I will be happy to be advised. Thanks,

[Ifeffit] Fitting bond lengths without a known FEFF file

Dear list experts, Here is another challenging question for me; can someone help? I have soil samples, trying to fit the first shell, I have 3 different optional bond lengths, which might give a lot of information. Now I have two questions: 1. If I do not know of specific structure (XRD implies a

Re: [Ifeffit] E0 issues

OK, so I lost my freedom, but got some wisdom... in case of a mix of complex unknown material, it might be fatal I guess. Thanks Scott! ___ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit

Re: [Ifeffit] E0 issues

Scott Calvin writes: > > Hi Hana, > > On Jun 27, 2011, at 2:04 PM, Hana wrote: > > > I guess my question is obvious to most of you, but after some > > practice and reading, the following is still unclear to me > > (hopefully some other beginner

[Ifeffit] E0 issues

I guess my question is obvious to most of you, but after some practice and reading, the following is still unclear to me (hopefully some other beginners will benefit): Normally I have calibrated my spectra using a calibration foil – so energy shift was done according to that companion standard.

[Ifeffit] Temp effect

to my understanding? specifically, I am trying to compare my measurements(collected at 10K) to literature data of these metals adsorbed on iron oxides (collected at room temperature). I would appreciate any advise, Hana ___ Ifeffit mailing list If