Calculation of the total excitation energy for neutron fission of plutonium isotopes and investigation of its systematic method

Abstract

In this study,the values of total excitation energy (TXE) of fission fragments are calculated for neutron fission of Plutonium isotopes using two methods. At first, the calculated TXE values using two methods are compared for neutron fission of plutonium 239. Then, the calculated TXE values using the second method are improved based on the results of the first method. TXE distribution of plutonium 241 and 242, which have the measured fission fragment total kinetic energy, are calculated using two methods and according to the method modification. Also, the TXE distributions for neutron fission of other plutonium isotopes are predicted. The values of total excitation energy of fission fragments for plutonium isotopes are between 15 MeV and 35 MeV. The TXE values have a sudden increase in the symmetric region.

Keywords

• the total excitation energy
• scission point model
• neutron fission
• the deformation of fission fragments