Radiations fromGe77andGe71

Abstract

The 12-hour ${\mathrm{Ge}}^{77}$ was found to emit beta-rays of energy 1.74 Mev and $\gamma$-rays of 0.5 Mev. Beta-gamma-coincidences were measured in the 12-hour period. The 40-hour positron emitter is not formed by slow neutrons on germanium. The 11-day ${\mathrm{Ge}}^{71}$ decays with the emission of the x-rays of gallium following orbital electron capture. Previously obtained absorption curves have given evidence of emission of charged particles by the 11-day period. This misinterpretation is discussed.