Energy Levels and γ-Ray Transitions in 149Pm
作者： Hideki Iimura , Takeshi Seo , Shigeru Yamada
DOI: 10.1143/JPSJ.55.1108
关键词: Atomic physics 、 Spins 、 Theoretical models 、 Energy (signal processing) 、 Current (fluid) 、 Mixing (physics) 、 Physics 、 Coincidence
摘要: Gamma-gamma angular correlations have been measured for 25 cascading transitions in 149 Pm following the decay of 1.7–h Nd. The spins 288.21-, 425.30- and 515.66-keV levels assigned as 9/2, 7/2 respectively. E2/M1 mixing ratios 15 derived. A new level at 872.32 keV has introduced from results γ-ray singles γ–γ coincidence measurements. Experimental energies compared with predictions based on current theoretical models.
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