On Tuesday 05 December 2006 09:03, Carlo Segre wrote:
It looks like this is fluorescence data. It is likely that you have significant self-absorption if this is a Pt foil. Try to apply an "infinite" sample correction to this data before fitting. That should correct the SO2 somewhat.
I agree with Carlo. I tried correcting your data as he suggested and it more or less doubled the amplitude of chi(k). This does suggest one of the cardinal rules of EXAFS data analysis, which is that good data analysis starts with careful sample preparation. B -- Bruce Ravel ---------------------------------------------- bravel@anl.gov Molecular Environmental Science Group, Building 203, Room E-165 MRCAT, Sector 10, Advanced Photon Source, Building 433, Room B007 Argonne National Laboratory phone and voice mail: (1) 630 252 5033 Argonne IL 60439, USA fax: (1) 630 252 9793 My homepage: http://cars9.uchicago.edu/~ravel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/