With the advent of various
neutron spallation sources in the U.K, U.S, Japan and elsewhere, total
scattering gains its importance as the scattering coverage and intensity has been increased significantly. Total scattering is defined mathematically in terms of
correlation function, which can be used to analyze either the
amorphous, crystalline or local structure. However, there are different definitions for these functions in the literature leading to confusion. The author developed a consistent set of equations for total-scattering corelation functions and compared with other common definitions to enlighten newcomers to the field of total scattering.
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