Density analysis of the neutron structure factor and the determination of the pair potential of krypton

We propose a method of analysis of the density behavior of the experimental neutron scattering structure factor which permits us to derive directly from the experimental results an "experimental" pair potential. We apply the method to the recent results of Teitsma and Egelstaff in krypton gas and derive a pair potential which is in good agreement with the empirical potential of Barker et al. Some discrepancies in the range $4<r<\mathrm{}8\mathrm{}$ Å are noted.