P + <sup> 24 </ Sup> Mg ~ <sup> 180 </ Sup> Hf Nuclear Reactions, Optical Model Calculations And Analysis

Nowadays, there are some disadvantages in the nuclear power system for commercial use which impeded in the progress of the practical applications of the fission energy, such as the problem of the final disposal of the long-life, high radioactive nuclear waste materials; the low efficiency of the uranium utilization; the security issue et al. At present time, the Accelerator-Driven clean nuclear power System (ADS) has been an efficient approach to solve these problems, which is based on the microscope nuclear reaction data and concerned the security and the performance of the whole system directly. The study on the nuclear reaction and the microscope nuclear reaction data in theory is not only very important to the design of the ADS system, but also significant to the further explore of the nuclear structure and its nature. The work is the sub-topics of Project "973", which mainly about the physical and technological infrastructure of accelerator driven system.Based on optical model method, and the experimental data of the elastic scattering angular distribution from EXFOR nuclear test database of the reactions between protons and 24Mg,28Si,48Ca,59Co,120Sn, we get five sets of good optical potential parameters with the experiment data(in conditions of protons incident energy less than 200MeV) through using optical model parameters tuning procedures APMN. We predict reaction cross section, elastic scattering angular distribution of nuclears which are between 24Mg and 180Hf, from the five sets of optical potential parameters. Due to the parameters have the optical potential, we have had the scope of five sets of parameters through the contrary between theoretical calculation and the experimental data. In addition, we use protons optical potential parameters of Becchetti and Greenlees (B-G) to do the related calculation for comparison. The results show that the parameters of the optical potential is better than the universal protons optical potential parameters of B-G, and has overcome the difficulties to predict reaction cross sections with the energy above 50MeV from B-G optical potential parameters.In addition, optical potential parameters are used to present the role reaction properties of the incident proton and the target nuclear, which is the potential part of the Hamiltonian. We use the optical potential parameters to calculate the phenomenological Woods-Saxon optical potential real and imaginary parts, optical potential and imaginary part of body surface with protons incident energy absorption, radius of relationships quantitatively. We also compare the calculation result with B-G optical potential. And the relations of the optical potential real and imaginary parts with optical potential nuclear elastic scattering Angle and absorption section are analyzed theoretically.