Abstract
The radioactive decay of 72Ga has been investigated by means of Ge(Li) and Si(Li) detectors. The energies and intensities of 71 γ-rays have been determined from the γ-ray singles spectrum. Extensive γγ coincidence experiments were performed with two Ge(Li) detectors coupled to a two-parameter analyser. Internal conversion electron measurements were performed with a Si(Li) detector system. The electron-γ delayed coincidence experiments were carried out with an anthracene crystal and a 35 cm 3 Ge(Li) detector. These extensive coincidence relationships were used to identify the levels of 72Ge populated by 72Ga with excited states at 691.2, 834.02, 1463.88, 1728.24, 2064.80, 2402.0, 2463.74, 2514.65, 2583.5, 2754.1, 2943.45, 3035.41, 3094.7, 3324.92, 3341.68, 3439.3, 3455.2, 3566.0, 3678.1, 3707.1, 3758.6 and 3815.4 keV. The β − feedings and the log ƒt values were calculated from the relative γ-ray intensities.
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