Fine structure in one‐proton emission studied at Oak Ridge

Two observations of fine structure in proton emission are reported : 3‐μs 145Tm and 4‐ms 141Ho. These experiments were performed using the Recoil Mass Separator (RMS) at the Holifield Radioactive Ion Beam Facility at Oak Ridge. The signals from the RMS detectors were digitally processed using Digital Gamma Finder modules. The fine structure branching ratios, 9.6±1.5% and 0.70±0.15%, and measured energies of the 2+ excited levels in daughter nuclei, 330 and 202 keV, respectively, helped us to determine the deformations and wave functions of proton‐emitting states.