Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method

Liddick, S. N.; Larsen, A. C.; Guttormsen, M.; Spyrou, A.; Crider, B. P.; Naqvi, F.; Midtbø, J. E.; Bello Garrote, F. L.; Bleuel, D. L.; Crespo Campo, L.; Couture, A.; Dombos, A. C.; Giacoppo, F.; Görgen, A.; Hadynska-Klek, K.; Hagen, T. W.; Ingeberg, V. W.; Kheswa, B. V.; Lewis, R.; Mosby, S.; Perdikakis, G.; Prokop, C. J.; Quinn, S. J.; Renstrøm, T.; Rose, S. J.; Sahin, E.; Siem, S.; Tveten, G. M.; Wiedeking, M.; Zeiser, F.

doi:10.1103/PhysRevC.100.024624

Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the $β$ -Oslo method

Journal Article · Mon Aug 26 00:00:00 EDT 2019 · Physical Review. C

DOI:https://doi.org/10.1103/PhysRevC.100.024624· OSTI ID:1561454

Liddick, S. N. ^[1]; Larsen, A. C. ^[2]; Guttormsen, M. ^[2]; Spyrou, A. ^[1]; Crider, B. P. ^[1]; Naqvi, F. ^[1]; Midtbø, J. E. ^[2]; Bello Garrote, F. L. ^[2]; Bleuel, D. L. ^[3]; Crespo Campo, L. ^[2]; Couture, A. ^[4]; Dombos, A. C. ^[1]; Giacoppo, F. ^[5]; Görgen, A. ^[2]; Hadynska-Klek, K. ^[2]; Hagen, T. W. ^[2]; Ingeberg, V. W. ^[2]; Kheswa, B. V. ^[6]; Lewis, R. ^[1]; Mosby, S. ^[4] more »

Michigan State Univ., East Lansing, MI (United States)
Univ. of Oslo, Oslo (Norway)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of Oslo, Oslo (Norway); Helmholtz Inst. Mainz, Mainz (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
iThemba LABS (South Africa); Univ. of Oslo, Oslo (Norway)
Central Michigan Univ., Mount Pleasant, MI (United States); Michigan State Univ., East Lansing, MI (United States)
iThemba LABS (South Africa)

Numerous scientific fields including astrophysics, nuclear power, and nuclear forensics require a knowledge of basic nuclear properties for large numbers of short-lived, radioactive isotopes far removed from stable nuclei. Neutron-capture cross sections are one such piece of nuclear data where direct measurements are not possible and theoretical predictions can vary by orders of magnitude. A recently developed indirect technique for inferring neutron capture rates, the β-Oslo method, has been introduced but not compared against a known, directly measured neutron capture cross section. To provide this benchmark, two indirect methods based on β decay and charged-particle reactions were used to extract the nuclear level density and γ-ray strength function of ⁵¹Ti. The nuclear level density and γ-ray strength function from the two data sets were found to be equivalent and were used to extract the neutron capture cross section of ⁵⁰Ti which agrees with previous direct measurements at high neutron energies. Here, the results demonstrate the validity of the β-Oslo method for extracting neutron capture cross sections of short-lived nuclei and provide a sufficiently small uncertainty to be used in various applications.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Michigan State Univ., East Lansing, MI (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344; SC0013039; NA0000979; NA0003180; NA0003221; FC03-03NA00143

OSTI ID:: 1561454

Alternate ID(s):: OSTI ID: 1558834; OSTI ID: 1657661

Report Number(s):: LLNL-JRNL-760247; PRVCAN; 947179; TRN: US2000615

Journal Information:: Physical Review. C, Vol. 100, Issue 2; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 2 works

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Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β -Oslo method

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Title: Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the $β$ -Oslo method