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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:
 [1];  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Nuclear and Chemical Sciences Division; Univ. of California, Davis, CA (United States). Physics Dept.
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Publication Date:
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 (NA-20)
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:
Journal Article: 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.
Vogt, R., & Randrup, J. Improved modeling of photon observables with the event-by-event fission model FREYA. United States. doi:10.1103/PhysRevC.96.064620.
Vogt, R., and Randrup, J. Thu . "Improved modeling of photon observables with the event-by-event fission model FREYA". United States. doi:10.1103/PhysRevC.96.064620. https://www.osti.gov/servlets/purl/1424113.
@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},
issn = {2469-9985},
number = 6,
volume = 96,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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Cited by: 4 works
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Figures / Tables:

FIG. 1: 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 » (b) shows the low-energy spectrum for photon energies less than 1 MeV. The calculated results in this and all subsequent figures are based on one million events and the associated sampling errors are shown.« less

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