Calculation of Fission Reaction in the Framework of QMD + SDM

Abstract

Various quantities related to fission reaction induced by nucleon are calculated using the Quantum Molecular Dynamics (QMD) plus Statistical Decay Model (SDM) in the energy range 10 MeV to 10 GeV. The fission cross sections are calculated for ¹⁹⁷Au, ²⁰⁹Bi and ²³⁸U and compared with experiments. The calculation predicts fairly well the experimental values. The mass distributions are calculated for ²⁰⁸Pb and ²³²Th at 1.6-GeV and 190-MeV proton incident energy, respectively. The calculation for ²⁰⁸Pb reproduces the experimental mass distribution well. In the ²³²Th case the calculation shows broader distribution than the experimental value. The average number of the prompt neutron emission per fission v_p and the fission neutron spectrum χ are extracted from the QMD + SDM calculation and their incident energy dependences are shown.

Keywords:

• fission reaction
• cross section
• nucleon induced
• quantum molecular dynamics
• statistical decay model
• χ, v_P