Scattering of High Velocity Neutral Particles. VII. Xenon—Xenon

Measurements have been made of the scattering of xenon atoms with energies between 700 and 2100 ev in room temperature xenon. The interaction potential for two xenon atoms, deduced from the variation of total collision cross sections with energy, may be expressed as $${\text{V(r)=1.13×10}}^{\text{−8}}{\mathrm{/r}}^{\text{7.97}}\hspace{0.17em}\mathrm{ergs}$$ for r between 3.01 A and 3.60 A. This potential is consistent with others, valid at larger separation distances, which have been obtained from measurements of gaseous compressibility, transport, and crystal properties, within the limits of uncertainty of the potentials at the larger distances.