160 Tb β - 衰变纲图研究

对由160Tb的β-衰变而产生的γ射线利用GeLi和HpGe探测器进行了单谱和γ γ符合谱的测量.根据单谱和γ-γ符合谱的测量结果给出了160Tb的β-衰变纲图.并用绝热对称转动模型对160Dy中转动带与振动带的耦合参数Zγ值进行了计算,得出从振动带到转动带的γ跃迁几率B(E2)值之比不能通过唯一的Zγ值来描述.Tb/β-衰变;衰变纲图;带耦合参数 The γtransitions in 160Tb decay has been studied by γ ray spectroscopy and γγ coincidence measurements with highefficiency Ge(Li) and HpGe detectors. The β- decay scheme of 160Tb was proposed according to the results of γray spectroscopy and γγ coincidence measurement. The bandmixing parameter Zγ for 160Dy is determined and it is observed that the measured γray branching ratios do not lead to a unique value of Zγ for 160 Dy.