Exploiting the concept of the dinuclear system, the interaction potential energy of two fragments that are quite close to each other is analyzed. A semi-classical method is used to calculate fission fragment yields using a simplified two-dimensional scission-point model. By considering the tip-to-tip orientation at the scission point of the fission process, we investigate the mass, charge, and kinetic-energy distributions of the fission fragments, for excitation energies in the 0-20 MeV range. Our results show that the fission fragment distributions are reproduced quite well, including the recent experimental results for the isotone chain [D Ramos et al. Phys. Rev. C 97, 054612 (2018)]. Thus, the simplified model is useful for multi-parameter global measurements of fission products.

利用双核系统的概念，分析了两个非常接近的碎片的相互作用势能。半经典方法用于使用简化的二维裂变点模型计算裂变碎片产量。通过考虑裂变过程裂变点的尖端到尖端方向，我们研究了裂变碎片的质量、电荷和动能分布，激发能量在 0-20 MeV 范围内。我们的结果表明，裂变碎片分布得到了很好的再现，包括最近对等渗链的实验结果 [D Ramos et al . 物理。修订版C 97, 054612 (2018)]。因此，简化模型可用于裂变产物的多参数全局测量。