Don, I am sure that Paul Northrup (north...@bnl.gov) will help - he was the beamline scientist at X15B and is likely to have the standards you need.
Anatoly ------------------------------------------------------------------- On Fri, Jun 8, 2018 at 9:54 AM, Don Baker <don.ba...@mcgill.ca> wrote: > Hello All, > > First let me apologize if the question below is inappropriate for this > group, but I don't know of a better set of experts that I can ask. > > So, here is some background: > > I have some old S K-edge XANES data from NSLS X15B for S-bearing > silicate glasses that was collected by a Ph.D. student who decided to > leave for a good job rather than finishing their degree. During my > current sabbatical year I have been looking at the data and reading > papers on the topic. I think that I now understand, at least > qualitatively, the changes in the spectra as a function of iron > concentration in the glasses, but to perform quantitative modelling I > need XANES spectra of MgS and CaS, which we did not think to collect all > those years ago. I have searched for XANES spectra of MgS and CaS on > the CARS XAFS Data Library and on the XAFS Database at IIT without > success. I am unaware of other databases available. > > Now for for my questions: > > 1. Does anyone know of a XANES database that contains MgS and CaS > spectra? (Or did I miss it in the databases I searched?) > > 2. If I cannot find measured MgS and CaS spectra, what do you think > about using calculated spectra (e.g., Zheng et al.,2012, NPJ > Computational Materials, 12 -- which uses FEFF) for quantitative > modelling? > > > And information, ideas, and suggestions that you may have will be > appreciated. > > > Wishing you all the best from a spring morning in Montreal, > > Don > > > > > -- > Melting rocks today for a better tomorrow . . . > Don R. Baker, Professor of Geochemistry, Earth and Planetary Sciences, > McGill University > > _______________________________________________ > Ifeffit mailing list > Ifeffit@millenia.cars.aps.anl.gov > http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit > Unsubscribe: http://millenia.cars.aps.anl.gov/mailman/options/ifeffit >
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