Dear Rietveld Users,
The correction of the data with the Legendre polynomials coefficients
was too difficult.
I have used HighScore to extract the background and to correct the data
with the relation :
I corrected = I obs / I background done with Excel
The final result is not too bad !!
All the informations are in the link
Link for data + the Jana refinement
https://perso.univ-lemans.fr/~fgouten/Legendre
Best wishes, francois
Le 27/03/2024 à 15:23, francois Goutenoire a écrit :
Dear Rietveld users
I have some data collected on a synchrotron line on reflection mode.
The sample is an ancient steel (Fe alpha + Fe3C). The aim is to
analyzed Fe/Fe3C in order to get the carbon content.
The total scattering volume is obviously not constant with 2 theta.
We can observe an increase of the background and the Rietveld
refinement is not possible, but the Le Bail fit is good (see on the link).
In order to get a good Rietveld refinement, I would like to modified
the data (Sorry !! I known is not acceptable ! Joke).
The idea is to use the background to modified the intensities, in
order to get a flat background.
I would like to use the Legendre polynomials coefficients to do this
correction.
Does someone know how to to that ?
Link for the images https://perso.univ-lemans.fr/~fgouten/Legendre
Best wishes, francois
--
*********************************************************************************************
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Elaboration et Caracterisation des Composés Cristalisés (E3C)
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*********************************************************************************************
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/diffraction-des-rayons-x-sur-materiaux-polycristallins?axe=135
Formation EDX CNRS
https://cnrsformation.cnrs.fr/fluorescence-x-edx?axe=135
Formation SAXS et Réflectivités pour couches minces et matériaux nanostructurés.
https://cnrsformation.cnrs.fr/caracterisation-des-materiaux-nanostructures-par-diffusion-des-rayons-x?axe=135
Bibliographie
https://scholar.google.fr/citations?hl=fr&user=qC-lmN4AAAAJ&view_op=list_works&authuser=1&sortby=title
https://orcid.org/0000-0001-5339-3002
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Please do NOT attach files to the whole list<alan.he...@neutronoptics.com>
Send commands to<lists...@ill.fr> eg: HELP as the subject with no body text
The Rietveld_L list archive is onhttp://www.mail-archive.com/rietveld_l@ill.fr/
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
--
*********************************************************************************************
Pr. Francois GOUTENOIRE
e-mail:francois.gouteno...@univ-lemans.fr
Tel: 02.43.83.33.54
FAX: 02.43.83.35.06
Institut des Molécules et des Matériaux du Mans
IMMM - UMR CNRS 6283
Elaboration et Caracterisation des Composés Cristalisés (E3C)
Université du Maine - Avenue Olivier Messiaen
F-72085 Le Mans Cedex 9
FRANCE
*********************************************************************************************
Formation Rietveld CNRS
https://cnrsformation.cnrs.fr/diffraction-des-rayons-x-sur-materiaux-polycristallins?axe=135
Formation EDX CNRS
https://cnrsformation.cnrs.fr/fluorescence-x-edx?axe=135
Formation SAXS et Réflectivités pour couches minces et matériaux nanostructurés.
https://cnrsformation.cnrs.fr/caracterisation-des-materiaux-nanostructures-par-diffusion-des-rayons-x?axe=135
Bibliographie
https://scholar.google.fr/citations?hl=fr&user=qC-lmN4AAAAJ&view_op=list_works&authuser=1&sortby=title
https://orcid.org/0000-0001-5339-3002
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Please do NOT attach files to the whole list <alan.he...@neutronoptics.com>
Send commands to <lists...@ill.fr> eg: HELP as the subject with no body text
The Rietveld_L list archive is on http://www.mail-archive.com/rietveld_l@ill.fr/
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
