Differential elastic scattering of potassium atoms by atomic iodine at thermal energies

The differential scattering of potassium atoms by atomic iodine has been measured in both the in-plane and out-of-plane mode. The energy range covered was 0.08–0.2 eV. The angular dependence was measured between 2° and 108° (center of mass). A semiclassical synthesis of the observed scattering from assumed potential curves gives insight into the nature of the covalent potentials for potassium iodide.