[Ifeffit] Hephaestus: Absorption Data Source

Bruce Ravel bravel at bnl.gov
Mon Nov 13 10:34:23 CST 2017


On 11/13/2017 11:15 AM, Daniel Przyrembel wrote:
> Still I can't see any reference to 'Keski-Rahkonen and Krause' in


http://bruceravel.github.io/demeter/documents/Athena/hephaestus.html#absorption


Here is the relevant bit from Feff:

https://github.com/xraypy/feff85exafs/blob/master/src/COMMON/setgam.f

Note that that bit in Feff is less sophisticated than you might think. 
My memory (Matt or John might remember better) is that Steve Zabinski 
(main author of Feff6) "interpolated" those values from the plots in the 
K&R paper.  This was done with a ruler back in the days before we had 
software tools for such chores.  I am not saying that the values in 
setgam.f are wrong -- just not as precise as you might imagine.

B



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

  National Institute of Standards and Technology
  Synchrotron Science Group at NSLS-II
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