Re: [Ifeffit] SO2 for samples with non-planar geometry

[Anatoly Frenkel]

Fluorescence or transmission? What is the Cu concentration? Could be self absorption.  Anatoly On Apr 21, 2023, at 9:31 PM, Joel Brugger <joel.brug...@monash.edu> wrote: Dear list, We are trying to fit EXAFS from data collected on solutions within a capillary. The capillary has OD 1mm, ID 0.8mm, and was placed horizontally. The beam is 1x2 mm (VxH). Fitting the copper reference foil, we get the expected SO2 value of ~0.7. However, the solution containing the Cu(II) aqua ion gives a coordination of 2, instead of the expected 5-6. So our SO2 for this solution is apparently ~0.25.  I couldn’t find a discussion of the effect of geometry (in our case cylindrical rather than planar) on SO2. Is it possible that the low SO2 is a result of the odd geometry? Confused as ever, JOEL Joël Brugger Professor of Synchrotron Geosciences Monash University School of Earth, Atmosphere and Environment  Room 257A, Level 2, 9 Rainforest Walk Clayton, Victoria 3800 Australia T: +61 3 9905 4898 E: joel.brug...@monash.edu  Twitter: @JoelBrugger _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit

_______________________________________________
Ifeffit mailing list
Ifeffit@millenia.cars.aps.anl.gov
http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit