The 173Yb(n, γ)174Yb reaction and the level scheme of 174Yb

摘要: The energy levels and electromagnetic transitions in 174Yb have been investigated studies of thermal neutron capture on enriched targets 173Yb2O3. gamma-ray spectrum was studied high resolution up to an 2000 keV with curved crystal spectrometers primary gamma rays were a Ge(Li) pair spectrometer. conversion electron measured from 18 2500 high-resolution, iron beta Transition multipolarities thus obtained for many transitions. Gamma-gamma coincidences also supplement these data. A level scheme constructed based the Ritz combination principle. separation found be 7464.58+or-0.35 keV. untypical even-even, rare-earth nuclei. As its near neighbour 172Yb some even-even Hf nuclei, vibration lies above first excited Kpi =0+ state is only weakly collective. Comparison made structure calculated framework IBA-1. It concluded that not, whole, well described purely collective framework.