[Ifeffit] Artemis\Plot mismatch\Artemis[Plot]&Artemis [Feff] Atoms and Feff

Ravel, Bruce bravel at bnl.gov
Mon Jan 11 18:48:54 CST 2021

Question 1:  As explained here:


the plot made form the paths tab of the Feff window make no effort to 
set parameters like S02 and sigma^2 to sensible values.  The plots made 
from the Data window probably have values for S02 and sigma^2 not equal 
to 1 and 0, respectively.

Question 2:  See


a topic which is also explained in many other places by many other people.


On 1/10/21 9:49 PM, Huaming wrote:
> Dear all,
> I am using Artemis for EXAFS data fittingand found that the |χ(R)| plot 
> shown in "Artemis [Plot]" and "Artemis [Feff] Atoms and Feff" are in 
> great difference for a same scattering path. However, the |χ(k)| plots 
> shown in the above two windows is the same.   For the plot shown in 
> "Artemis [Feff] Atoms and Feff" window, one path is selected and 'Plot 
> path' is clicked. For the plot shown in "Artemis [Plot]", the same path 
> is dragged into the "Artemis window" and then transfered path and plot 
> in R by click "Action" menu.  I would like to know what is the 
> difference of data shown in the two windows.
> BTW, whether it is possible to have two peaks in the |chi(R)| plot for a 
> single scattering path? For some scatters with high-Z, the f(k) may 
> feature multiple peaks.
> Thanks,
> All bests,
> Huaming Hou
> _______________________________________________
> Ifeffit mailing list
> Ifeffit at millenia.cars.aps.anl.gov
> http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
> Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit

  Bruce Ravel  ------------------------------------ bravel at bnl.gov

  National Institute of Standards and Technology
  Synchrotron Science Group at NSLS-II
  Lead Beamline Scientist, 6BM (BMM)
  Building 743, Room 114
  Upton NY, 11973

  Homepage:    http://bruceravel.github.io/home/
  Beamline:    https://www.bnl.gov/ps/beamlines/beamline.php?r=6-BM
  Software:    https://github.com/bruceravel
  Demeter:     http://bruceravel.github.io/demeter/

More information about the Ifeffit mailing list