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Title: Fission Reaction Event Yield Algorithm -- FREYA -- For Event-by -Event Simulation of Fission

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1184751
Report Number(s):
LLNL-JRNL-659526
DOE Contract Number:
DE-AC52-07NA27344
Resource Type:
Journal Article
Resource Relation:
Journal Name: Computer Physics Communication, vol. 191, na, February 14, 2015, pp. 178-202
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Verbeke, J, Randrup, J, and Vogt, R. Fission Reaction Event Yield Algorithm -- FREYA -- For Event-by -Event Simulation of Fission. United States: N. p., 2014. Web.
Verbeke, J, Randrup, J, & Vogt, R. Fission Reaction Event Yield Algorithm -- FREYA -- For Event-by -Event Simulation of Fission. United States.
Verbeke, J, Randrup, J, and Vogt, R. Thu . "Fission Reaction Event Yield Algorithm -- FREYA -- For Event-by -Event Simulation of Fission". United States. doi:. https://www.osti.gov/servlets/purl/1184751.
@article{osti_1184751,
title = {Fission Reaction Event Yield Algorithm -- FREYA -- For Event-by -Event Simulation of Fission},
author = {Verbeke, J and Randrup, J and Vogt, R},
abstractNote = {},
doi = {},
journal = {Computer Physics Communication, vol. 191, na, February 14, 2015, pp. 178-202},
number = ,
volume = ,
place = {United States},
year = {Thu Aug 28 00:00:00 EDT 2014},
month = {Thu Aug 28 00:00:00 EDT 2014}
}
  • Cited by 12
  • The purpose of this paper is to present the main differences between FREYA versions 1.0 and 2.0.2. FREYA (Fission Reaction Event Yield Algorithm) is a fission event generator which models complete fission events. As such, it automatically includes fluctuations as well as correlations between observables, resulting from conservation of energy and momentum. The main differences between the two versions are: additional fissionable isotopes, angular momentum conservation, Giant Dipole Resonance form factor for the statistical emission of photons, improved treatment of fission photon emission using RIPL database, and dependence on the incident neutron direction. FREYA 2.0.2 has been integrated into themore » LLNL Fission Library 2.0.2, which has itself been integrated into MCNP6.2, TRIPOLI-4.10, and can be called from Geant4.10.« less
    Cited by 2
  • Cited by 1
  • The event-by-event fission model FREYA has been improved, in particular to address deficiencies in the calculation of photon observables. In this paper, we discuss the improvements that have been made and introduce several new variables, some detector dependent, that affect the photon observables. We show the sensitivity of FREYA to these variables. Finally, we then compare the results to the available photon data from spontaneous and thermal neutron-induced fission.
    Cited by 1
  • FREYA (Fission Reaction Event Yield Algorithm) is a code that simulated the decay of a fissionable nucleus at specified excitation energy. In its present form, FREYA models spontaneous fission and neutron-induced fission up to 20 MeV. It includes the possibility of neutron emission from the nuclear prior to its fussion (nth chance fission).