STUDY OF DECAY SCHEME OF BROMINE-74

The decay scheme of bromine-74 produced by carbon-12 ions (5.5 MeV/nucleon) on thin copper targets is discussed. The half-life was found to be 38±1 min. The β+ endpoint energy was measured to be 5.2±0.1 MeV. For the determination of the γ rays, two Ge(Li) detectors were used and the following γ rays were established: 220±2, 355±2, 511, 610±2, 633±2, 722±2, 835±2, 985±2, 1190±5, 1220±5, 1260±5, 1355±5, (1445 and 1455)±5, 1705±5, 1960±5, 2300±10, 2330±10, and 3950±15 keV. The weaker γ rays are listed in a table. A tentative decay scheme for bromine-74 is given. © 1969 The American Physical Society.