Nonfuel antineutrino contributions in the ORNL High Flux Isotope Reactor (HFIR)
| العنوان: | Nonfuel antineutrino contributions in the ORNL High Flux Isotope Reactor (HFIR) |
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| المؤلفون: | Xiaolu Ji, I. Mitchell, D. Norcini, A. Woolverton, C.E. Gilbert, J. Wilhelmi, Chao Zhang, Aiwu Zhang, S. Nour, M. P. Mendenhall, A. J. Conant, J. L. Palomino-Gallo, Anna Erickson, X. Lu, R. Neilson, E. Romero-Romero, C. E. Lane, Christopher G. White, T. Classen, D. Berish, R. Milincic, D. E. Jaffe, T. J. Langford, R. Rosero, A. B. Hansell, J. A. Nikkel, C. D. Bryan, J. LaRosa, Denis E. Bergeron, B. T. Foust, A. Galindo-Uribarri, B. R. Littlejohn, Jim Napolitano, M. A. Tyra, P. T. Surukuchi, X. Zhang, D. C. Jones, A. B. Balantekin, O. Kyzylova, R. L. Varner, J. K. Gaison, B. Hackett, J. Maricic, Nathaniel Bowden, Hans P. Mumm, K. M. Heeger, Minfang Yeh, J. P. Brodsky, M. V. Diwan, P. E. Mueller, H. R. Band, G. Deichert, Xin Qian, Dmitry A. Pushin, B. Heffron, C. D. Bass, M. J. Dolinski, S. Hans |
| المصدر: | Physical Review C. 101 |
| بيانات النشر: | American Physical Society (APS), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Physics, Isotope, 010308 nuclear & particles physics, chemistry.chemical_element, Uranium, Oak Ridge National Laboratory, 01 natural sciences, 7. Clean energy, Nuclear physics, chemistry, 13. Climate action, Inverse beta decay, 0103 physical sciences, Neutron, Irradiation, Reactor neutrino, 010306 general physics, High Flux Isotope Reactor |
| الوصف: | Reactor neutrino experiments have seen major improvements in precision in recent years. With the experimental uncertainties becoming lower than those from theory, carefully considering all sources of ν ¯ e is important when making theoretical predictions. One source of ν ¯ e that is often neglected arises from the irradiation of the nonfuel materials in reactors. The ν ¯ e rates and energies from these sources vary widely based on the reactor type, configuration, and sampling stage during the reactor cycle and have to be carefully considered for each experiment independently. In this article, we present a formalism for selecting the possible ν ¯ e sources arising from the neutron captures on reactor and target materials. We apply this formalism to the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory, the ν ¯ e source for the the Precision Reactor Oscillation and Spectrum Measurement (PROSPECT) experiment. Overall, we observe that the nonfuel ν ¯ e contributions from HFIR to PROSPECT amount to 1% above the inverse beta decay threshold with a maximum contribution of 9% in the 1.8-2.0 MeV range. Nonfuel contributions can be particularly high for research reactors like HFIR because of the choice of structural and reflector material in addition to the intentional irradiation of target material for isotope production. We show that typical commercial pressurized water reactors fueled with low-enriched uranium will have significantly smaller nonfuel ν ¯ e contribution. |
| تدمد: | 2469-9993 2469-9985 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a01a2eb45d174321af2803eaa2f25c6d https://doi.org/10.1103/physrevc.101.054605 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........a01a2eb45d174321af2803eaa2f25c6d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 24699993 24699985 |
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