晕核或弱束缚核破裂对熔合的影响受到广泛的关注。但实验上至今仍然没有得出破裂效应使熔合增强还是减弱的结论。6Li是个弱束缚核(Bd=1.47MeV),是研究熔合反应的破裂效应的理想弹核。我们通过观察复合核蒸发残余的α衰变,测量了6Li+208Pb熔合反应激发函数。实验在原子能科学研 The influence of halo nucleus or weakly bound nucleus rupture on fusion has received extensive attention. However, up to now, no conclusions have been drawn as to whether the rupture effect enhances or abates the fusion. 6Li is a weakly bound core (Bd = 1.47MeV), which is the ideal bullet to study the rupture effect of the fusion reaction. By observing the residual α decay of the composite nuclear evaporation, we measured the excitation function of the 6Li + 208Pb fusion reaction. Experiment in Atomic Energy Research Institute