Comparison of EXAFS Foil Spectra from Around the World Page: 4 of 4
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values and larger Ei-values as expected. These models illustrate that the single S02 value of 1.04 0.05
is the best beamline independent value for Cu-foil given our set of 11 spectra."
Table 2. Cu Foil EXAFS parameters.
So -model Ei-model
(Ei = 0) (So2 = 1.04 0.05)
Cu Foil Data Set So2 Ei (eV)
ALS, 10.3.2 0.93 0.02 0.9 0.3
APS, 101D 0.97 0.03 0.5 0.3
APS, 131D 1.02 0.03 0.1 0.3
ERSF, BM30b, Si(111) 1.02 0.03 0.1 0.3
ERSF, BM30b, Si(220) 0.98 0.03 0.4 0.3
LNLS, DO4B-XAFS1 1.04 0.04 0.0 0.4
NSLS, X23A2 1.00 0.02 0.2 0.3
SSRL, BL23, bulk 0.91 0.02 1.0 0.3
SSRL, BL23, micro 0.94 0.06 0.8 0.6
SSRL, BL41 0.97 0.02 0.5 0.3
Spring 8, BLO1 B1 0.98 0.04 0.4 0.4
The So2-values for the Pd foil EXAFS spectra varied slightly between 0.83 to 0.85 0.04 with Ei = 0.
In the model with So2 refined to the common value of 0.85 0.04, the Ei-values varied from 0.0 to 0.2
1.0 eV. The variation in the amplitude of the first shell peak in the magnitude of the Fourier
transform of the Pd foil spectra were very similar as expected for such a slight variation in So2
The APS at ANL and ALS at LBNL are supported by the U. S. D.O.E., Office of Science, Office of
Basic Energy Sciences, under Contracts No. DE-AC02-06CH11357 and DE-AC02-05CH11231 respectively.
Portions of this research were carried out at the SSRL, a national user facility operated by
Stanford University on behalf of the U.S. Department of Energy, Office of Basic Energy Sciences.
The SSRL Structural Molecular Biology Program is supported by the Department of Energy, Office of
Biological and Environmental Research, and by the National Institutes of Health, National Center for
Research Resources, Biomedical Technology Program.
Use of the NSLS, BNL, was supported by the U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886.
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Kelly, S. D.; Bare, S. R.; Greenlay, N.; Azevedo, G.; Balasubramanian, M.; Barton, D. et al. Comparison of EXAFS Foil Spectra from Around the World, article, July 16, 2010; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1012968/m1/4/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.