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用ＨｐＧｅ探测器和低本底康普顿抑制谱仪研究了１３５Ｌａ的放射性衰变，实验得到单谱、康 普顿抑制谱和γ－γ符合谱。根据实验数据得到１３５Ｂａ低激发态、γγ跃迁的能量、强度和级联关 系以及１３５Ｌａ衰变纲图。采用了角动量投影壳模型理论对１３５Ｂａ低激发态能级进行计算，并与实 验值进行了比较。
The radioactive decay of 135 La was studied by using HpGe detector and low background Compton suppression spectrometer. The single spectrum, Compton inhibition spectrum and γ-γ coincidence spectrum were obtained. According to the experimental data, the energies, intensities and cascade relations of 135Ba low-excited state and γ-γ transitions are obtained, and the decay diagram of 135La is obtained. The angular momentum projection shell model theory was used to calculate the 135Ba low-excited-state energy level and compared with the experimental data.