Abstract
The decay of 11.6 min 152 Nd to levels of odd-odd 152 Pm has been studied with HpGe, Ge(Li) detectors, LEPS, and a plastic scintillation detector by γ-ray singles, time dependent γ-ray singles, γ-γ coincidence and β-γ delayed coincidence measurements. Sources were prepared by a rapid chemical separation method from the fission products of 235 U. Ten γ-rays were observed and five of them are newly observed (19.5, 25.0, 44.4, 545.6 and 570.7 keV). Half-lives of the 16.1 and 28.5 keV transitions were measured to be 2.1±1.0 ns and ≤1.0 ns, respectively. A decay scheme of 152 Nd involving 2 new levels at 25.0 and 570.7 keV in 152 Pm and spin-parities are proposed. The Nilsson configurations of excited states in 152 Pm are discussed.
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