Radiations fromGe69

Abstract

The radiations from ${\mathrm{Ge}}^{69}$ (39.6 hr) have been studied with the help of a magnetic lens spectrograph. Gamma-rays of energies 0.090, 0.388, 0.576, 0.870, 1.12, 1.340, 1.610 Mev have been found. The positron spectrum is complex and can be analyzed into three groups of end-point energies 1.215 Mev (88 percent) 0.610 Mev (10 percent), and 0.220 Mev (2 percent). Coincidence studies have also been made. A tentative energy level scheme is presented.