Combining Intranuclear-Cascade and Preequilibrium Hauser-Feshbach Models for Nuclear Cross-Section Calculations Between 1 MeV and 5 GeV

摘要: High-energy transport codes for the design of accelerator-driven systems such as Spallation Neutron Source use nuclear reaction models incident particle, and secondary particles are transported through various materials. These computationally fast but unreliable at energies below {approx}200 MeV. As a partial remedy, an evaluated cross-section library up to 150 MeV known LA150 was developed by international cooperation made available work. In present project we have been developing model code suitable improving extending it higher energies. This new combines microscopically semiclassical results intranuclear-cascade with spin-dependent counterparts preequilibrium Hauser-Feshbach model. To achieve this microscopic combination, approximation, explained in paper, is needed add spin distributions excitation spectra every residual nuclide. The initial capability demonstrated comparisons experimental production cross sections radioisotopes {sup 56}Co, 55}Co, 54}Mn, 52}Mn, 52}Fe, 51}Cr, 48}Cr, 48}V, 47}Sc, 46}Sc induced proton projectiles on Fe from thresholds 3 GeV. overall agreement our calculated resultsmore » data looks very good view 29 contributions recent intercomparisons measurements.« less