[Ifeffit] data after rebinning look worse in k-space than before?

Ilya Sinev ilya.sinev at ruhr-uni-bochum.de
Wed Jun 27 05:09:03 CDT 2018

Hi all,


I have a question regarding the chi(k) function isolation and rebinning
processes. I have some data recorded in “quasi channel-cut” modus, i.e. with
the mono constantly moving and the data points collected with the highest
possible rate. With 180 sec measurement in yields to a spectrum of ca. 8600
point, which obviously needs to be rebinned. The rebinned data, however,
does not look good in k-space even if multiple data are merged. Moreover, I
have an impression that the raw spectrum in k-space does not have those
8000+ points anymore but significantly less. Is there any reduction of the
data points number that is not seen (e.g. as a preparation step for FT)?
Since the unbinned data has higher quality, does it then make more sense to
keep using it for EXAFS analysis?




Thank you

Ilya Sinev



Herr Dr. Ilya Sinev


Institute for Experimental Physics IV

Faculty of Physics and Astronomy

Ruhr-Universität Bochum

Universitätsstrasse 150

44801 Bochum, Germany


Office: NB 4/134

Phone: +49 234 32 23647

Fax: +49 234 32 14173

e-mail:  <mailto:Ilya.Sinev at rub.de> Ilya.Sinev at rub.de



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