= Matthew Newville
{c}
{tag=Physicist}
A researcher and educator in <X-ray absorption fine structure>. His tutorial connects the measured <X-ray absorption spectroscopy> oscillations with the <scattering> of a photoelectron by neighboring <atoms>. The resulting analysis estimates neighboring distances and coordination, making the technique useful for studying local structure even when a sample lacks the long-range order needed for ordinary <crystallography>.<Fundamentals of XAFS by Matthew Newville>[Physical description of photoelectron interference and EXAFS parameters R and N]{ref}
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