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

[Ilya Sinev]

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

www.ep4.rub.de

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20180627/5bff4c96/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 22393 bytes
Desc: not available
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20180627/5bff4c96/attachment-0001.jpg>