论文标题
完全融合反应和多核转移反应中中子缺陷肌动剂同位素的生产机制
Production mechanism of neutron-deficient actinide isotopes in complete fusion reactions and multinucleon transfer reactions
论文作者
论文摘要
在双核系统模型中，在$^{40} $ ca，$^{40} $ ca，$^{36,40} $ ar，$^{32 {32 {32} $ s，$ s，$ s，$ s，$^{28} $ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ si，$ s，$ si，$ s，$ si，$ s，$ s，$ s，$ s，$ s，$ s，$ s，$ s，$ s，$ s，$ s，带有放射性光束$^{59} $ cu，$^{69} $ as，$^{90} $ nb，$^{91} $ tc，$^{94} $ rh，$^{105,110} $ sn，$^{118} $ XE $ XE $ XE $ XE $^ul，在模型中计算了融合蒸发反应中化合物核的产生横截面和融合蒸发反应和片段的产量。一种统计方法用于通过两种反应机制评估激发核的生存概率。在耗散过程中，在模型中实现了动态变形。发现电荷颗粒通道（Alpha和Proton）在富含质子的核素的衰减过程中占主导地位，并且融合散发反应有利于产生新的中子缺陷型actinide同位素。主要片段的总动能和角光谱在很大程度上取决于碰撞方向。
Within the dinuclear system model, unknown neutron-deficient isotopes Np, Pu, Am, Cm, Bk, Cf, Es, Fm are investigated in $^{40}$Ca, $^{36,40}$Ar, $^{32}$S, $^{28}$Si,$^{24}$Mg induced fusion-evaporation reactions and multinucleon transfer reactions with radioactive beams $^{59}$Cu,$^{69}$As,$^{90}$Nb,$^{91}$Tc, $^{94}$Rh, $^{105,110}$Sn, $^{118}$Xe induced with $^{238}$U near Coulomb barrier energies. The production cross sections of compound nuclei in the fusion-evaporation reactions and fragments yields in the multinucleon transfer reactions are calculated within the model. A statistical approach is used to evaluate the survival probability of excited nuclei via the both reaction mechanisms. A dynamical deformation is implemented into the model in the dissipation process. It is found that charge particle channels (alpha and proton) dominate in the decay process of proton-rich nuclides and the fusion-evaporation reactions are favorable to produce the new neutron-deficient actinide isotopes. The total kinetic energies and angular spectra of primary fragments are strongly dependent on colliding orientations.
