在质量数为150的核区,原子核显示了很强的单粒子性和集体性的竞争。核子数增加或减少一两个都会引起原子核结构很大的变化。156Tm是远离双幻数的稀土区核,目前为止对156Tm核的研究工作比较少[1,2],已有的能级结构信息也很少。在中子数N≥88时原子核显示了集体性,而在中子数N≤8 At a nuclear mass of 150, the nuclei show a strong single-particle and collective competition. An increase or decrease in the number of nuclei will cause a large change in the structure of the nucleus. 156Tm is far from the dual magic number of rare earth core, so far less work on 156Tm nuclear research [1,2], the existing level structure information is also very small. In the neutron number N ≥ 88 when the nuclei show the collective, while the number of neutrons N ≤ 8