Another reference that might help:

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.22.1615
Core-level lifetimes as determined by x-ray photoelectron spectroscopy measurements
John C. Fuggle and Santos F. Alvarado
Phys. Rev. A 22, 1615 – Published 1 October 1980

X-ray photoelectron spectroscopy (XPS) has been used to measure lifetime broadening of L, M, N, O, and P core levels with binding energies less than 1500 eV in approximately 25 elements. The results show that the framework provided by previously accepted theoretical estimates of lifetime broadening is sometimes misleading. Lifetimes derived from theory and experiment often differ by a factor of 2 or more. In the transition metals of the first period plots of measured widths of the L1(2s),L2(2p12), and L3(2p32) levels as a function of atomic number show broad maxima which are not adequately described by theory. The origin of this broadening is extensively discussed, as is the overestimation of lifetimes by theory in other areas of the periodic table.


Also check "Cited by" references for potentially updated information.

-R.

On 11/13/2017 8:34 AM, Bruce Ravel wrote:
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




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