Improved modeling of photon observables with the event-by-event fission model FREYA

Vogt, R.; Randrup, J.

doi:10.1103/PhysRevC.96.064620

Title: Improved modeling of photon observables with the event-by-event fission model FREYA

Abstract

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.

Authors:

Vogt, R. ^[1]; Randrup, J. ^[2]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division; Univ. of California, Davis, CA (United States). Physics Dept.
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division

Publication Date:: Thu Dec 28 00:00:00 EST 2017

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

OSTI Identifier:: 1424113

Alternate Identifier(s):: OSTI ID: 1416446

Report Number(s):: LLNL-JRNL-737157
Journal ID: ISSN 2469-9985; TRN: US1801908

Grant/Contract Number:: AC52-07NA27344; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C

Additional Journal Information:: Journal Volume: 96; Journal Issue: 6; Journal ID: ISSN 2469-9985

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; fission; thermal & statistical models

Citation Formats


                    Vogt, R., and Randrup, J. Improved modeling of photon observables with the event-by-event fission model FREYA.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevC.96.064620.

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                    Vogt, R., & Randrup, J. Improved modeling of photon observables with the event-by-event fission model FREYA.  United States.  https://doi.org/10.1103/PhysRevC.96.064620

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                    Vogt, R., and Randrup, J. Thu .  
"Improved modeling of photon observables with the event-by-event fission model FREYA".  United States.  https://doi.org/10.1103/PhysRevC.96.064620.  https://www.osti.gov/servlets/purl/1424113.

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@article{osti_1424113,

  title        = {Improved modeling of photon observables with the event-by-event fission model FREYA},

  author       = {Vogt, R. and Randrup, J.},

  abstractNote = {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.},

  doi          = {10.1103/PhysRevC.96.064620},

  journal      = {Physical Review C},

  number       = 6,

  volume       = 96,

  place        = {United States},

  year         = {Thu Dec 28 00:00:00 EST 2017},

  month        = {Thu Dec 28 00:00:00 EST 2017}

}

Copy to clipboard

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https://doi.org/10.1103/PhysRevC.96.064620

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Cited by: 17 works

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Figures / Tables:

FIG. 1:: (Color online) The ²⁵²Cf(sf) photon spectrum from FREYA calculated as in Ref. [2] without GDR form factor or RIPL-3 lines, with GDR but without RIPL-3 lines, and including both, as in the current version of FREYA. Panel (a) shows the spectrum over the entire energy range, while panelmore »

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Works referenced in this record:

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Works referencing / citing this record:

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r -process nucleosynthesis
journal, April 2019

Vassh, N.; Vogt, R.; Surman, R.
Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 6
DOI: 10.1088/1361-6471/ab0bea

Review on the progress in nuclear fission—experimental methods and theoretical descriptions
journal, September 2018

Schmidt, Karl-Heinz; Jurado, Beatriz
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Correlated prompt fission data in transport simulations
journal, January 2018

Talou, P.; Vogt, R.; Randrup, J.
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Correlated Prompt Fission Data in Transport Simulations
text, January 2017

Talou, P.; Vogt, R.; Randrup, J.
arXiv
DOI: 10.48550/arxiv.1710.00107

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis
text, January 2018

Vassh, Nicole; Vogt, Ramona; Surman, Rebecca
arXiv
DOI: 10.48550/arxiv.1810.08133

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Similar Records

Title: Improved modeling of photon observables with the event-by-event fission model FREYA

Abstract

Citation Formats

Figures / Tables:

Late-time emission of prompt fission γ rays journal, December 2016

Prompt Neutron Emission Probabilities Following Spontaneous and Thermal Neutron Fission journal, September 1985

Monte Carlo Hauser-Feshbach predictions of prompt fission γ rays: Application to n th + 235 U, n th + 239 Pu, and 252 Cf (sf) journal, January 2013

Properties of prompt-fission γ rays journal, August 2014

RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations journal, December 2009

Fission Reaction Event Yield Algorithm FREYA 2.0.2 journal, January 2018

Gamma de-excitation of fission fragments journal, December 1964

Improved values for the characteristics of prompt-fission γ -ray spectra from the reaction 235 U( n th , f ) journal, May 2013

Simultaneous investigation of fission fragments and neutrons in 252Cf (SF) journal, December 1988

Prompt γ-rays emitted in the thermal-neutron induced fission of 233U and 239Pu journal, October 1973

Event-by-event study of photon observables in spontaneous and thermal fission journal, April 2013

Event-by-event study of neutron observables in spontaneous and thermal fission journal, October 2011

Advanced Monte Carlo modeling of prompt fission neutrons for thermal and fast neutron-induced fission reactions on Pu 239 journal, June 2011

Impact of low-energy photons on the characteristics of prompt fission γ -ray spectra journal, July 2015

Refined treatment of angular momentum in the event-by-event fission model freya journal, April 2014

Evidence for the stochastic aspect of prompt γ emission in spontaneous fission journal, February 2012

Prompt neutron multiplicity in correlation with fragments from spontaneous fission of Cf 252 journal, December 2014

Event-by-event evaluation of the prompt fission neutron spectrum from 239 Pu ( n , f ) journal, February 2012

Gamma de-excitation of fission fragments journal, March 1965

Fission modelling with FIFRELIN journal, December 2015

Energy dependence of the prompt γ -ray emission from the ( d , p ) -induced fission of U * 234 and Pu * 240 journal, July 2017

Total Energy Associated with Prompt γ -Ray Emission in the Spontaneous Fission of Cf 252 journal, December 1973

Mass-dependent structure in the fission γ-ray yields from 252Cf journal, October 1969

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements journal, February 2001

Measurements of the giant dipole resonance with monoenergetic photons journal, July 1975

Monte Carlo approach to sequential γ-ray emission from fission fragments journal, January 2006

Prompt Gamma Rays from U 235 ( n , f ) , Pu 239 ( n , f ) , and Spontaneous Fission of Cf 252 journal, March 1973

Prompt Gamma Rays Emitted in the Thermal-Neutron-Induced Fission of U 235 journal, September 1972

A detector for (n,γ) cross-section measurements at a spallation neutron source journal, February 2001

Gamma rays from fission fragments journal, November 1995

Fission Reaction Event Yield Algorithm, FREYA — For event-by-event simulation of fission journal, June 2015

Neutron angular correlations in spontaneous and neutron-induced fission journal, December 2014

General Description of Fission Observables: GEF Model Code journal, January 2016

Facility for neutron multiplicity measurements in fission journal, January 2004

Gamma-ray multiplicity measurement of the spontaneous fission of 252Cf in a segmented HPGe/BGO detector array journal, December 2010

Gamma-neutron competition in the de-excitation mechanism of the fission fragments of 252Cf journal, July 1972

A compact gas-filled avalanche counter for DANCE journal, December 2012

New prompt spectral γ -ray data from the reaction 252 Cf(sf) and its implication on present evaluated nuclear data files journal, February 2013

Event-by-event study of neutron observables in spontaneous and thermal fission text, January 2011

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r -process nucleosynthesis journal, April 2019

Review on the progress in nuclear fission—experimental methods and theoretical descriptions journal, September 2018

Correlated prompt fission data in transport simulations journal, January 2018

Correlated Prompt Fission Data in Transport Simulations text, January 2017

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis text, January 2018

Late-time emission of prompt fission $γ$ rays
journal, December 2016

Prompt Neutron Emission Probabilities Following Spontaneous and Thermal Neutron Fission
journal, September 1985

Monte Carlo Hauser-Feshbach predictions of prompt fission $γ$ rays: Application to $n_{th} +^{235}$ U, $n_{th} +^{239}$ Pu, and $^{252}$ Cf (sf)
journal, January 2013

Properties of prompt-fission $γ$ rays
journal, August 2014

RIPL – Reference Input Parameter Library for Calculation of Nuclear Reactions and Nuclear Data Evaluations
journal, December 2009

Fission Reaction Event Yield Algorithm FREYA 2.0.2
journal, January 2018

Gamma de-excitation of fission fragments
journal, December 1964

Improved values for the characteristics of prompt-fission $γ$ -ray spectra from the reaction $^{235}$ U( $n_{th}$ , $f$ )
journal, May 2013

Simultaneous investigation of fission fragments and neutrons in 252Cf (SF)
journal, December 1988

Prompt γ-rays emitted in the thermal-neutron induced fission of 233U and 239Pu
journal, October 1973

Event-by-event study of photon observables in spontaneous and thermal fission
journal, April 2013

Event-by-event study of neutron observables in spontaneous and thermal fission
journal, October 2011

Advanced Monte Carlo modeling of prompt fission neutrons for thermal and fast neutron-induced fission reactions on ${}^{239}{Pu}$
journal, June 2011

Impact of low-energy photons on the characteristics of prompt fission $γ$ -ray spectra
journal, July 2015

Refined treatment of angular momentum in the event-by-event fission model freya
journal, April 2014

Evidence for the stochastic aspect of prompt $γ$ emission in spontaneous fission
journal, February 2012

Prompt neutron multiplicity in correlation with fragments from spontaneous fission of ${}^{252}{Cf}$
journal, December 2014

Event-by-event evaluation of the prompt fission neutron spectrum from $^{239} Pu (n, f)$
journal, February 2012

Gamma de-excitation of fission fragments
journal, March 1965

Fission modelling with FIFRELIN
journal, December 2015

Energy dependence of the prompt $γ$ -ray emission from the $(d, p)$ -induced fission of ${}^{234}U^{}$ and ${}^{240}{Pu}^{}$
journal, July 2017

Total Energy Associated with Prompt $γ$ -Ray Emission in the Spontaneous Fission of ${}^{252}{Cf}$
journal, December 1973

Mass-dependent structure in the fission γ-ray yields from 252Cf
journal, October 1969

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements
journal, February 2001

Measurements of the giant dipole resonance with monoenergetic photons
journal, July 1975

Monte Carlo approach to sequential γ-ray emission from fission fragments
journal, January 2006

Prompt Gamma Rays from ${}^{235}U (n, f)$ , ${}^{239}{Pu} (n, f)$ , and Spontaneous Fission of ${}^{252}{Cf}$
journal, March 1973

Prompt Gamma Rays Emitted in the Thermal-Neutron-Induced Fission of ${}^{235}U$
journal, September 1972

A detector for (n,γ) cross-section measurements at a spallation neutron source
journal, February 2001

Gamma rays from fission fragments
journal, November 1995

Fission Reaction Event Yield Algorithm, FREYA — For event-by-event simulation of fission
journal, June 2015

Neutron angular correlations in spontaneous and neutron-induced fission
journal, December 2014

General Description of Fission Observables: GEF Model Code
journal, January 2016

Facility for neutron multiplicity measurements in fission
journal, January 2004

Gamma-ray multiplicity measurement of the spontaneous fission of 252Cf in a segmented HPGe/BGO detector array
journal, December 2010

Gamma-neutron competition in the de-excitation mechanism of the fission fragments of 252Cf
journal, July 1972

A compact gas-filled avalanche counter for DANCE
journal, December 2012

New prompt spectral $γ$ -ray data from the reaction $^{252}$ Cf(sf) and its implication on present evaluated nuclear data files
journal, February 2013

Event-by-event study of neutron observables in spontaneous and thermal fission
text, January 2011

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r -process nucleosynthesis
journal, April 2019

Review on the progress in nuclear fission—experimental methods and theoretical descriptions
journal, September 2018

Correlated prompt fission data in transport simulations
journal, January 2018

Correlated Prompt Fission Data in Transport Simulations
text, January 2017

Using excitation-energy dependent fission yields to identify key fissioning nuclei in r-process nucleosynthesis
text, January 2018