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本工作测量近垒能区16O+76Ge和18O+74Ge体系的熔合反应,以研究正Q-2n转移道对熔合反应的影响。两个靶核的低激发态性质接近,18O+74Ge体系的Q-2n为3.75MeV,对于16O+76Ge体系没有正Q值中子转移道。因此相比16O+76Ge体系,18O+74Ge有可能存在额外的熔合截面增强。实验在北京HI-13串列加速器上进行,测量装置是静电偏转板。选取的束流能量为45～60MeV,
This work measures the fusion reaction of the 16O + 76Ge and 18O + 74Ge systems near the energy barrier to study the effect of the positive Q-2n transition on the fusion reaction. The low-excited-state properties of the two target nuclei are close, the Q-2n of the 18O + 74Ge system is 3.75MeV, and there is no positive Q-value neutron transfer path for the 16O + 76Ge system. Therefore, compared with 16O + 76Ge system, 18O + 74Ge there may be additional fusion cross-section enhancement. The experiment was carried out on Beijing HI-13 Tandem Accelerator. The measuring device was an electrostatic deflector. Select the beam energy of 45 ~ 60MeV,