Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Neutron clustering in Monte Carlo iterated-source calculations

  • Sutton, Thomas M. (Naval Nuclear Laboratory-Knolls Atomic Power Laboratory, Bechtel Marine Propulsion Corporation) ;
  • Mittal, Anudha (Naval Nuclear Laboratory-Knolls Atomic Power Laboratory, Bechtel Marine Propulsion Corporation)
  • Received : 2017.05.15
  • Accepted : 2017.07.24
  • Published : 2017.09.25
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Abstract

Monte Carlo neutron transport codes generally use the method of successive generations to converge the fission source distribution to-and then maintain it at-the fundamental mode. Recently, a phenomenon called "clustering" has been noted, which produces fission distributions that are very far from the fundamental mode. In this study, a mathematical model of clustering in Monte Carlo has been developed. The model draws on previous work for continuous-time birth-death processes, as well as methods from the field of population genetics.

Keywords

References

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Cited by

  1. Fission Matrix Decomposition Method for Criticality Calculations: Theory and Proof of Concept vol.193, pp.9, 2019, https://doi.org/10.1080/00295639.2019.1583948
  2. COUNTERING NEUTRON CLUSTERING IN MONTE CARLO WITH A NEUTRON SOURCE INJECTION vol.247, pp.None, 2017, https://doi.org/10.1051/epjconf/202124704022
  3. Patchy nuclear chain reactions vol.4, pp.1, 2017, https://doi.org/10.1038/s42005-021-00654-9