P + ^{90 Zr Reflect The Theoretical Calculation And Analysis Of The Double Differential Cross Sections Of Particle Emission}

The accelerator-driven system (ADS-accelerator driven systems) for transmuting radioactive waste and producing power has gained more and more attentions in nuclear physics. A great deal of common and accurate cross-section data of nuclear reactions which can be used in the studies on shielding requirement of the nuclear facilities, activation, radiation heating and material damage, especially, the data of neutron and proton-induced energy-angle correlated spectra and double differential cross-sections of particles (neutron, proton, deuteron, triton, helium-3and alpha-particle) are needed in the design of ADS. As a highly anti-corrosion alloy, Zr (zirconium) plays an important role in the structure materials used in nuclear reactors, and the proton-induced reactions data on Zr in the energy range from the threshold energy to200MeV are necessary for the ADS design.All cross-sections, energy spectra and double differential cross sections of six outgoing particles (n, p, d, t, he-3and a-particle) for p+90Zr reaction are consistently calculated at incident proton energies below200MeV in this work. The optical model, distorted born wave approximation theory, the intra-nuclear cascade model, the exciton model, the Hauser-Feshbach theory and the evaporation model, especially, the improved Iwamoto-Harada model of the light composite particles (d, t, he-3and a-particle) emission are included in our calculation. This model makes the calculated results agreeing with the experimental data well, especially the results of the complex particles emissions. The calculated results are compared with the experimental data and good agreements are obtained in this work. Besides, the calculated cross-section results are compared with the evaluation data from the data library of JENDL (Japanese evaluated nuclear data library), TENDL (TALYS-based Evaluated Nuclear Data Library) and PADF (Proton Activation Data Library). It is found that the calculated results are better than the evaluated data of other data library. The calculated results are self-consistent on the whole and have good agreement with the experimental data, besides the curves of the nuclear data not only represent the experimental data, but also verify the nuclear theory. This set of data has important academic significance and application value for the construction of the data base and the design of ADS.