New Isotope Indium-106

Abstract

A new isotope, ${\mathrm{In}}^{106}$, has been produced by proton bombardment of cadmium. Mass and atomic number assignment have been made on the basis of the excitation function and chemical separations, and by using a target enriched in ${\mathrm{Cd}}^{106}$. Two positron energy end points of this 5.3-min activity have been measured at 4.85 and 3.1 Mev. Gamma rays at 1.65 and 1.85 Mev have been resolved from a complex high-energy spectrum.