Comparison of MAVRIC/MONACO and TRIPOLI-4{sup R} simulations of the LLNL pulsed spheres benchmark experiments - 25403

Conference · Wed Aug 15 04:00:00 EDT 2018

OSTI ID:23055078

Miller, T. M. ^[1]; Le Menedeu, E.; Mancusi, D.; Zoia, A. ^[2]

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1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN, 37831 (United States)
2. Den-Service d'etudes des reacteurs et de mathematiques appliquees - SERMA, CEA, Universite Paris-Saclay, F-91191, Gif-sur-Yvette (France)

Simulations of the Lawrence Livermore Pulsed Spheres with MAVRIC/Monaco and TRIPOLI-4{sup R} are presented. Both codes use ENDF/B-VII.1 cross section data, but TRIPOLI-4{sup R} also uses cross section data based on JEFF-3.1.1. The MAVRIC/Monaco simulations were performed with the SCALE 6.2.2 release while the TRIPOLI-4{sup R} simulations used an internal development version of the code. For the most part, the simulated and measured neutron counts agree within 30%. Simulated gamma flux data is compared, as well. There are no measured gamma data. The agreement between the simulated gamma flux spectra is often within 10% or less, but there some notable differences, especially when comparing simulations using ENDF/B-VII.1 and JEFF 3.1.1 based cross section data. The comparison of photon simulations suggests that improvements are needed in the cross-section data, cross section processing codes, and/or transport codes and gamma measurement data is needed for experimental validation. (authors)

• Research Organization: American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 23055078
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
97 MATHEMATICS AND COMPUTING
BENCHMARKS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CROSS SECTIONS
LAWRENCE LIVERMORE NATIONAL LABORATORY
NEUTRON TRANSPORT
NEUTRONS
NUCLEAR DATA COLLECTIONS
PHOTONS
SPECTRA
VALIDATION