DEPOLARIZED INTERACTION-INDUCED LIGHT-SCATTERING PAIR SPECTRUM OF MERCURY-VAPOR UP TO T=1073-K

Mecury vapour depolarized-light scattering spectra have been measured at various densities and temperatures up to 1070 K for the first time. Absolute-intensity calibration has been done. Comparisons of the zero th and second spectral moments with theoretical calculations using var ious available pair potentials and the dipole-induced-dipole approxima tion for the pair polarizability anisotropy have been performed. The l arge disagreement between experimental values and theoretical calculat ions is attributed to the breakdown of the classical point dipole appr oximation.