The Nuclear Excitation of Krypton and Rhodium

Abstract

${\mathrm{Kr}}^{83*}$ has been produced by the direct x-ray bombardment of the element as well as from ${\mathrm{Kr}}^{82}$ by the $n-\gamma$ process. A study of the nuclear spectrum of ${\mathrm{Rh}}^{103}$ by x-ray excitation gave values of 1.26±, 0.03 Mev, 1.64, 2.02, 2.37, 2.71, and 3.05 for the higher nuclear states which combine with the metastable level. Measurements of the absorption of the conversion electrons in gas indicate that the energy of the metastable state is 40 Kev about the ground level. It was found that ${\mathrm{Rh}}^{103*}$ can also be produced by the direct bombardment of rhodium with electrons.