Extended discussions
This section is a catch-all for topics of data analysis and the
operation of ARTEMIS that simply did not fit in other parts of this
users' guide.
Topics related to fitting EXAFS data
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Quick first shell theory
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An in-depth discussion of how the quick first shell theory tool
works, what it is used for, and how it can be misused.
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Characteristic values
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An explanation of the characteristic value, or CV, Data attribute. This is a tool
for building expressive, flexible, and powerful models for multiple
data set fitting problems.
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Geometric parametrization of bond length
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A discussion of parametrizations of bond length.
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Modeling the disorder parameter
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A discussion of parametrizations of the disorder parameter, σ².
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Using constraints and restraints
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A discussion of model building in IFEFFIT and ARTEMIS.
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Using empirical standards
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A discussion of the use of empirical standards is implemented in ARTEMIS.
Topics related to Feff
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Unique potentials
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The Atoms page
offers three ways of styling the potential indeces of the FEFF
input data. They are explained
by example using crystal data.
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The pathfinder and fuzzy degeneracy
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An explanation of
the pathfinder and of the concept of fuzzy degeneracy.
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Handling dopants in Feff calculations
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How dopants
can be introduced in to FEFF calulations and ARTEMIS fitting models.
Pages are needed explaining:
(1) Histograms,
(2) background co-refinement
(3) constraints and restraints