Journal of Guangxi Normal University(Natural Science Edition) ›› 2012, Vol. 30 ›› Issue (3): 64-70.

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Pre-neutron-emission Mass Distributions for Neutron-induced 238U Fission at Low and Intermediate Energies

SUN Xiao-jun, YU Cheng-gang, WANG Ning   

  1. College of Physical Science and Technology,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2012-05-24 Online:2012-09-20 Published:2018-12-04

Abstract: 238U,of which abundance is almost 95%,is one ofthe most important isotopes of the spent nuclear fuel.The study of neutron-induced 238U fission is in favor of the cycle processing of the spentfuel.Based on the microscopic and phenomenological approach,the pre-neutron-emissionmass distributions of neutron-induced 238U fission at incident energies from 0.9 to 60 MeV have been studied with the fission potential theory proposed in previous paper.The calculated results could well reproduce the experimental data,and are even better thanthat of the famous TALYS code at intermediate energies.The results can also reasonably predict the distributions at the vibrationalresonances,and the deviation between the experimental and the theoretical datais also analyzed.

Key words: 238U, neutron-induced fission, fission potential, pre-neutron-emission mass distribution

CLC Number: 

  • O571.43
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