摘要
Fusion cross sections with weakly bound nuclei have been a subject of great interest in the last few years[1;2]. Inthis field, the basic question is whether complete fusion (CF) is enhanced or suppressed due to diffused density andhigh probability of breakup. The answer to this question depends on the energy regime (above or below Coulombbarrier) and on different target mass regions. Therefore, one important approach to investigate this subject is tostudy the systematic behavior of the CF suppression as a function of the target mass or charge.For fusion induced by 9Be, there are some reported works on the CF on different targets, ranging from 89Y to209Bi[2], but the suppression factor of the CF at near barrier energies does not follow a systematic behavior. Forlighter targets, like 27Al and 64Zn [3;4] and for 238U[5], only total fusion (TF) cross sections were measured. Inorder to contribute to the investigation of the fusion of 9Be, we performed experiments to measure complete andincomplete fusion (ICF) of 9Be on the 187Re and 169Tm targets at energies close to the Coulomb barrier.
