Determining the average prompt-fission-neutron multiplicity for via a surrogate reaction
Abstract
The average prompt-fission-neutron multiplicity is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate-reaction method has been used for the first time to indirectly determine for via reactions. A target was bombarded with a beam of 53.9-MeV particles. Scattered particles, fission products, and neutrons were measured with the NeutronSTARS detector array. Values of were obtained for a continuous range of equivalent incident neutron energies between 0.25 and 26.25 MeV, and the results agree well with direct neutron measurements.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Texas A & M Univ., College Station, TX (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1604290
- Report Number(s):
- LLNL-JRNL-773338
Journal ID: ISSN 2469-9985; PRVCAN; 965114; TRN: US2104207
- Grant/Contract Number:
- AC52-07NA27344; NA0000979; NA0003180
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 100; 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; H & He induced nuclear reactions; nuclear reactions; nucleon induced nuclear reactions
Citation Formats
Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., and Saastamoinen, A. Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction. United States: N. p., 2019.
Web. doi:10.1103/PhysRevC.100.064609.
Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., & Saastamoinen, A. Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction. United States. https://doi.org/10.1103/PhysRevC.100.064609
Wang, B. S., Harke, J. T., Akindele, O. A., Casperson, R. J., Hughes, R. O., Koglin, J. D., Kolos, K., Norman, E. B., Ota, S., and Saastamoinen, A. Mon .
"Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction". United States. https://doi.org/10.1103/PhysRevC.100.064609. https://www.osti.gov/servlets/purl/1604290.
@article{osti_1604290,
title = {Determining the average prompt-fission-neutron multiplicity for Pu239(n,f) via a Pu240(α,α'f) surrogate reaction},
author = {Wang, B. S. and Harke, J. T. and Akindele, O. A. and Casperson, R. J. and Hughes, R. O. and Koglin, J. D. and Kolos, K. and Norman, E. B. and Ota, S. and Saastamoinen, A.},
abstractNote = {The average prompt-fission-neutron multiplicity ν¯ is of significance in the areas of nuclear theory, nuclear nonproliferation, and nuclear energy. In this work, the surrogate-reaction method has been used for the first time to indirectly determine ν¯ for Pu239(n,f) via Pu240(α,α'f) reactions. A Pu240 target was bombarded with a beam of 53.9-MeV α particles. Scattered α particles, fission products, and neutrons were measured with the NeutronSTARS detector array. Values of ν¯ were obtained for a continuous range of equivalent incident neutron energies between 0.25 and 26.25 MeV, and the results agree well with direct neutron measurements.},
doi = {10.1103/PhysRevC.100.064609},
journal = {Physical Review C},
number = 6,
volume = 100,
place = {United States},
year = {Mon Dec 23 00:00:00 EST 2019},
month = {Mon Dec 23 00:00:00 EST 2019}
}
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