THEORETICAL RESEARCH OF WEAK NEUTRON SOURCE INDUCED BURSTS IN FAST NEUTRON REACTOR
36th Annual CNS Conference - 2016 June 19-22


Presented at:
36th Annual CNS Conference
2016 June 19-22
Location:
Toronto, Canada
Session Title:
Session T3A: Reactor and Radiation Physics

Authors:
J. Liu (Institute of Applied Physics and Computational Mathematics)
R. She (Institute of Applied Physics and Computational Mathematics)
  

Abstract

We find that theoretical calculation using Hansen’s model is significantly different from experimental results of weak source induced busts by Wimett et al. on Godiva-II. Based on solution of the probability of n neutrons at time t, the expected length of finite fission chain is evaluated and the multiplication of delayed neutron precursors is studied, which indicate that the number of delayed neutrons may vary several times during the waiting time. With consideration of the multiplication of delayed neutron precursors, an improved theoretical model of probability distributions of burst wait-time is presented, which consist well with experimental results of Godiva-II

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