New IsotopeIn122

Abstract

A new isotope, ${\mathrm{In}}^{122}$, has been produced by 14-15 MeV neutron bombardment of tin. The basis for mass and atomic number assignment is presented, as well as the following decay characteristics: half-life, 7.5±0.8 sec; beta end-point energy, 4.5±0.8 MeV; two coincident gamma rays having energies 1.140±0.010 MeV and 0.995±0.010 MeV.