[Ifeffit] Basic question in normalization and background removal

["Dr. Dariusz A. Zając"]

Dear Cyril,

I think you should read about normalization of XANES (NEXAFS) spectra at 
soft X-rays. It is a common problem of normalization with the short 
post-edge region. There are few tricks. I think you can find answer in 
already published articles (as an example) or on ifeffit mailing list 
(there are few already discussed topics)

regards
kicaj


W dniu 13-02-08 08:28, Bajamundi Cyril pisze:
>
> Hello,
>
> I have here a very basic XANES data processing. I am but a novice in 
> this XANES analysis.
>
> In Bruce’s lecture  “Athena: Data processing I 
> <mms://diamstream02.diamond.ac.uk/xafs-2011-2>” posted in the Diamond 
> Light Source website, he used the Fe_lepidocrocite.000 example to show 
> how background removal and normalization is done.  For the 
> normalization range  he used the range 150 – 742.610 because his 
> original photon energy scan range is quite long [ Emin: -200 and Emax: 
> 800].
>
> However, say that your original scan range is only short e.g. within 
> the range Emin : -30 to Emax: 80, such that you don’t see the 
> non-wiggly range  and you only see the a short portion of the post 
> edge range, how does one set the normalization range for this data? 
> Since I’m very new to XANES analysis, I keep second-guessing my 
> choice  of normalization range.
>
> Your patience for answering this simple question will definitely help 
> me in moving to the actual fingerprinting analysis that I need to do 
> with my sample.
>
> Many thanks.
>
> Warm regards,
>
> Cyril
>
>
>
> _______________________________________________
> Ifeffit mailing list
> Ifeffit at millenia.cars.aps.anl.gov
> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20130208/75ad0b97/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/gif
Size: 70 bytes
Desc: not available
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20130208/75ad0b97/attachment.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 12976 bytes
Desc: not available
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20130208/75ad0b97/attachment.jpe>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 11282 bytes
Desc: not available
URL: <http://millenia.cars.aps.anl.gov/pipermail/ifeffit/attachments/20130208/75ad0b97/attachment-0001.jpe>