Radioactivity of neutron-rich oxygen, fluorine, and neon isotopes -: art. no. 024311

The gamma radiation and neutrons emitted following the beta decays of O-24, F25-27, and Ne28-30 have been measured. The nuclides were produced in the quasifragmentation of a 2.8 GeV S-36 beam, separated in-flight and identified through time-of-flight and energy-loss measurements. The ions were stopped in a silicon detector telescope, which was used to detect the beta particles emitted in their subsequent radioactive decay. The coincident gamma rays were measured using four large volume germanium detectors mounted close to the implantation point and the neutrons were detected using 42 He-3 proportional counters. The measured gamma-ray energy spectra are compared with shell model calculations and, where available, the level energies deduced from multinucleon transfer reactions. [S0556-2813(99)04108-4].