Measurement of the Antineutrino Spectrum from Fission at HFIR with PROSPECT
Abstract
This Letter reports the first measurement of the 235U $$\bar{ν}$$e energy spectrum by PROSPECT, the Precision Reactor Oscillation and Spectrum experiment, operating 7.9 m from the 85 MWth highly enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678±304(stat) $$\bar{ν}$$e-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to 235U. Despite broad agreement, comparison of the Huber 235U model to the measured spectrum produces a χ2/ndf=51.4/31, driven primarily by deviations in two localized energy regions. The measured 235U spectrum shape is consistent with a deviation relative to prediction equal in size to that observed at low-enriched uranium power reactors in the $$\bar{ν}$$e energy region of 5–7 MeV.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States); Yale Univ., New Haven, CT (United States); Drexel Univ., Philadelphia, PA (United States); Illinois Institute of Technology, Chicago, IL (United States); Temple Univ., Philadelphia, PA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); USDOE National Nuclear Security Administration (NNSA)
- Contributing Org.:
- PROSPECT Collaboration 3
- OSTI Identifier:
- 1542278
- Alternate Identifier(s):
- OSTI ID: 1546314; OSTI ID: 1557949; OSTI ID: 1564220; OSTI ID: 1595061
- Report Number(s):
- BNL-211845-2019-JAAM; LLNL-JRNL-767132
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- SC0012704; SC0016357; SC0017660; SC0017815; SC0008347; SC0016060; AC52-07NA27344; AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 25; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; reactor; antineutrino; oscillations; Physics - Nuclear physics and radiation physics; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Ashenfelter, J., Balantekin, A. B., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bowden, N. S., Brodsky, J. P., Bryan, C. D., Cherwinka, J. J., Classen, T., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Hackett, B. T., Hans, S., Hansell, A. B., Heeger, K. M., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Surukuchi, P. T., Telles, A. B., Tyra, M. A., Varner, R. L., Viren, B., White, C., Wilhelmi, J., Wise, T., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., and Zhang, X. Measurement of the Antineutrino Spectrum from U235 Fission at HFIR with PROSPECT. United States: N. p., 2019.
Web. doi:10.1103/PhysRevLett.122.251801.
Ashenfelter, J., Balantekin, A. B., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bowden, N. S., Brodsky, J. P., Bryan, C. D., Cherwinka, J. J., Classen, T., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Hackett, B. T., Hans, S., Hansell, A. B., Heeger, K. M., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Surukuchi, P. T., Telles, A. B., Tyra, M. A., Varner, R. L., Viren, B., White, C., Wilhelmi, J., Wise, T., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., & Zhang, X. Measurement of the Antineutrino Spectrum from U235 Fission at HFIR with PROSPECT. United States. https://doi.org/10.1103/PhysRevLett.122.251801
Ashenfelter, J., Balantekin, A. B., Band, H. R., Bass, C. D., Bergeron, D. E., Berish, D., Bowden, N. S., Brodsky, J. P., Bryan, C. D., Cherwinka, J. J., Classen, T., Conant, A. J., Cox, A. A., Davee, D., Dean, D., Deichert, G., Diwan, M. V., Dolinski, M. J., Erickson, A., Febbraro, M., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Gilje, K. E., Hackett, B. T., Hans, S., Hansell, A. B., Heeger, K. M., Insler, J., Jaffe, D. E., Ji, X., Jones, D. C., Kyzylova, O., Lane, C. E., Langford, T. J., LaRosa, J., Littlejohn, B. R., Lu, X., Martinez Caicedo, D. A., Matta, J. T., McKeown, R. D., Mendenhall, M. P., Minock, J. M., Mueller, P. E., Mumm, H. P., Napolitano, J., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Pushin, D. A., Qian, X., Romero-Romero, E., Rosero, R., Sarenac, D., Surukuchi, P. T., Telles, A. B., Tyra, M. A., Varner, R. L., Viren, B., White, C., Wilhelmi, J., Wise, T., Yeh, M., Yen, Y. -R., Zhang, A., Zhang, C., and Zhang, X. Fri .
"Measurement of the Antineutrino Spectrum from U235 Fission at HFIR with PROSPECT". United States. https://doi.org/10.1103/PhysRevLett.122.251801. https://www.osti.gov/servlets/purl/1542278.
@article{osti_1542278,
title = {Measurement of the Antineutrino Spectrum from U235 Fission at HFIR with PROSPECT},
author = {Ashenfelter, J. and Balantekin, A. B. and Band, H. R. and Bass, C. D. and Bergeron, D. E. and Berish, D. and Bowden, N. S. and Brodsky, J. P. and Bryan, C. D. and Cherwinka, J. J. and Classen, T. and Conant, A. J. and Cox, A. A. and Davee, D. and Dean, D. and Deichert, G. and Diwan, M. V. and Dolinski, M. J. and Erickson, A. and Febbraro, M. and Foust, B. T. and Gaison, J. K. and Galindo-Uribarri, A. and Gilbert, C. E. and Gilje, K. E. and Hackett, B. T. and Hans, S. and Hansell, A. B. and Heeger, K. M. and Insler, J. and Jaffe, D. E. and Ji, X. and Jones, D. C. and Kyzylova, O. and Lane, C. E. and Langford, T. J. and LaRosa, J. and Littlejohn, B. R. and Lu, X. and Martinez Caicedo, D. A. and Matta, J. T. and McKeown, R. D. and Mendenhall, M. P. and Minock, J. M. and Mueller, P. E. and Mumm, H. P. and Napolitano, J. and Neilson, R. and Nikkel, J. A. and Norcini, D. and Nour, S. and Pushin, D. A. and Qian, X. and Romero-Romero, E. and Rosero, R. and Sarenac, D. and Surukuchi, P. T. and Telles, A. B. and Tyra, M. A. and Varner, R. L. and Viren, B. and White, C. and Wilhelmi, J. and Wise, T. and Yeh, M. and Yen, Y. -R. and Zhang, A. and Zhang, C. and Zhang, X.},
abstractNote = {This Letter reports the first measurement of the 235U $\bar{ν}$e energy spectrum by PROSPECT, the Precision Reactor Oscillation and Spectrum experiment, operating 7.9 m from the 85 MWth highly enriched uranium (HEU) High Flux Isotope Reactor. With a surface-based, segmented detector, PROSPECT has observed 31678±304(stat) $\bar{ν}$e-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to 235U. Despite broad agreement, comparison of the Huber 235U model to the measured spectrum produces a χ2/ndf=51.4/31, driven primarily by deviations in two localized energy regions. The measured 235U spectrum shape is consistent with a deviation relative to prediction equal in size to that observed at low-enriched uranium power reactors in the $\bar{ν}$e energy region of 5–7 MeV.},
doi = {10.1103/PhysRevLett.122.251801},
journal = {Physical Review Letters},
number = 25,
volume = 122,
place = {United States},
year = {Fri Jun 28 00:00:00 EDT 2019},
month = {Fri Jun 28 00:00:00 EDT 2019}
}
Web of Science
Figures / Tables:
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Figures / Tables found in this record: