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在近库仑势垒能区的重离子核反应中,库仑势垒分布提供了核-核相互作用势和核反应动力学的重要信息。本工作中,我们高精度测量了近垒能区弱束缚核体系9Be+208Pb的背角准弹散射激发函数,并对从背角准弹散射激发函数和从全熔合激发函数抽取的势垒分布作了对比研究。实验是在中国原子能科学研究院HI-13串列加速器上完成的。反应靶是质量厚度为
The Coulomb barrier distribution provides important information on the nuclear-nuclear interaction potential and nuclear reaction kinetics in the heavy ion nuclear reaction at the near-Coulomb potential region. In this work, we measured the back-arc quasi-shell scattering excitation function of the weakly bound core 9BE + 208Pb in the near-barrier energy region with high precision. We also analyzed the potential distributions of the quasi-elastic scattering from the back-ground quasi- Made a comparative study. The experiment was performed on HI-13 tandem accelerator of China Institute of Atomic Energy. The reaction target is mass thickness