[en] Differential cross sections for He* scattered by Kr are obtained at three relative energies, 63.6--82.3 meV. Location of rainbow maxima and ''rapid'' quantum oscillations, observed at all energies, are used to determine parameters for a double Lennard-Jones potential. The parameters, epsilon=8.0 +- 0.6 meV and r/subm/=4.8 +- 0.25 A, are close to those for Li+Kr and are substantially different from those of He+Kr. The effects of direct electronic-energy exchange scattering are observed as excess scattered intensities between 10degree and 30degree lab. These effects are compared to those arising from chemi-ionization