Event-by-event study of neutron observables in spontaneous and thermal fission

Vogt, R; Randrup, J

doi:10.1103/PhysRevC.84.044621

Event-by-event study of neutron observables in spontaneous and thermal fission

Journal Article · Wed Sep 14 04:00:00 EDT 2011 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.84.044621· OSTI ID:1035968

Vogt, R; Randrup, J

The event-by-event fission model FREYA is extended to spontaneous fission of actinides and a variety of neutron observables are studied for spontaneous fission and fission induced by thermal neutrons with a view towards possible applications for SNM detection. We have shown that event-by-event models of fission, such as FREYA, provide a powerful tool for studying fission neutron correlations. Our results demonstrate that these correlations are significant and exhibit a dependence on the fissioning nucleus. Since our method is phenomenological in nature, good input data are especially important. Some of the measurements employed in FREYA are rather old and statistics limited. It would be useful to repeat some of these studies with modern detector techniques. In addition, most experiments made to date have not made simultaneous measurements of the fission products and the prompt observables, such as neutron and photons. Such data, while obviously more challenging to obtain, would be valuable for achieving a more complete understanding of the fission process.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 1035968

Report Number(s):: LLNL-JRNL-499401

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 4 Vol. 84; ISSN 0556-2813; ISSN PRVCAN

Country of Publication:: United States

Language:: English

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Event-by-event study of neutron observables in spontaneous and thermal fission

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