Paul, have you considered explicitly multiple scattering from within the
tetrahedron? The short distance you describe for the second shell might
be consistent with that.
Its pretty easy to write an expression in the fit routine that makes the
MS path distances explicitly dependent on the SS
Hi Paul,
Looking at your data, I agree that there does seem to be second-shell
scattering present in the signal.
Unfortunately, that most likely means that your material is not close
to one of the obvious model compounds. One possibility to keep in
mind is that you may have some kind of
