Journal article
Measurement of the Antineutrino Spectrum from U-235 Fission at HFIR with PROSPECT
Physical review letters, v 122(25)
28 Jun 2019
PMID: 31347897
Abstract
This Letter reports the first measurement of the U-235 (nu) over bar (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) (nu) over bar (e )-induced inverse beta decays, the largest sample from HEU fission to date, 99% of which are attributed to U-235. Despite broad agreement, comparison of the Huber U-235 model to the measured spectrum produces a chi(2)/ndf = 51.4/31, driven primarily by deviations in two localized energy regions. The measured U-235 spectrum shape is consistent with a deviation relative to prediction equal in size to that observed at low-enriched uranium power reactors in the (nu) over bar (e) energy region of 5-7 MeV.
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Details
- Title
- Measurement of the Antineutrino Spectrum from U-235 Fission at HFIR with PROSPECT
- Creators
- J. Ashenfelter - Wright LaboratoryA. B. Balantekin - University of Wisconsin–MadisonH. R. Band - Wright LaboratoryC. D. Bass - Le Moyne CollegeD. E. Bergeron - National Institute of Standards and TechnologyD. Berish - Temple UniversityN. S. Bowden - Lawrence Livermore National LaboratoryJ. P. Brodsky - Lawrence Livermore National LaboratoryC. D. Bryan - Oak Ridge National LaboratoryJ. J. Cherwinka - University of Wisconsin–MadisonT. Classen - Lawrence Livermore National LaboratoryA. J. Conant - Georgia Institute of TechnologyA. A. Cox - University of WaterlooD. Davee - William & MaryD. Dean - Oak Ridge National LaboratoryG. Deichert - Oak Ridge National LaboratoryM. V. Diwan - Brookhaven National LaboratoryM. J. Dolinski - Drexel UniversityA. Erickson - Georgia Institute of TechnologyM. Febbraro - Oak Ridge National LaboratoryB. T. Foust - Wright LaboratoryJ. K. Gaison - Wright LaboratoryA. Galindo-Uribarri - Oak Ridge National LaboratoryC. E. Gilbert - Oak Ridge National LaboratoryK. E. Gilje - Illinois Institute of TechnologyB. T. Hackett - Oak Ridge National LaboratoryS. Hans - Brookhaven National LaboratoryA. B. Hansell - Temple UniversityK. M. Heeger - Wright LaboratoryJ. Insler - Drexel UniversityD. E. Jaffe - Brookhaven National LaboratoryX. Ji - Brookhaven National LaboratoryD. C. Jones - Temple UniversityO. Kyzylova - Drexel UniversityC. E. Lane - Drexel UniversityT. J. Langford - Wright LaboratoryJ. LaRosa - National Institute of Standards and TechnologyB. R. Littlejohn - Illinois Institute of TechnologyX. Lu - Oak Ridge National LaboratoryD. A. Martinez Caicedo - Illinois Institute of TechnologyJ. T. Matta - Oak Ridge National LaboratoryR. D. McKeown - William & MaryM. P. Mendenhall - Lawrence Livermore National LaboratoryJ. M. Minock - Drexel UniversityP. E. Mueller - Oak Ridge National LaboratoryH. P. Mumm - National Institute of Standards and TechnologyJ. Napolitano - Temple UniversityR. Neilson - Drexel UniversityJ. A. Nikkel - Wright LaboratoryD. Norcini - Wright LaboratoryS. Nour - National Institute of Standards and TechnologyD. A. Pushin - University of WaterlooX. Qian - Brookhaven National LaboratoryE. Romero-Romero - Oak Ridge National LaboratoryR. Rosero - Brookhaven National LaboratoryD. Sarenac - University of WaterlooP. T. Surukuchi - Illinois Institute of TechnologyA. B. Telles - Wright LaboratoryM. A. Tyra - National Institute of Standards and TechnologyR. L. Varner - Oak Ridge National LaboratoryB. Viren - Brookhaven National LaboratoryC. White - Illinois Institute of TechnologyJ. Wilhelmi - Temple UniversityT. Wise - Wright LaboratoryM. Yeh - Brookhaven National LaboratoryY. -R. Yen - Drexel UniversityA. Zhang - Brookhaven National LaboratoryC. Zhang - Brookhaven National LaboratoryX. Zhang - Illinois Institute of TechnologyProspect Collaboration
- Publication Details
- Physical review letters, v 122(25)
- Publisher
- Amer Physical Soc
- Number of pages
- 7
- Grant note
- Yale University Brookhaven National Laboratory; United States Department of Energy (DOE) Province of Ontario DE-AC05-00OR22725 / Oak Ridge National Laboratory; United States Department of Energy (DOE) 2016-117 / Heising-Simons Foundation Illinois Institute of Technology Oak Ridge National Laboratory; United States Department of Energy (DOE) RGPIN-2018-04989 / Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery program; Natural Sciences and Engineering Research Council of Canada (NSERC) Canada First Research Excellence Fund (CFREF) National Institute of Standards and Technology; National Institute of Standards & Technology (NIST) - USA Temple University DE-SC0016357; DE-SC0017660; DE-SC0017815; DE-SC0008347; DE-SC0016060; DE-SC0012704; SCW1504 / U.S. Department of Energy (DOE) Office of Science, Office of High Energy Physics; United States Department of Energy (DOE) DE-AC52-07NA27344 / U.S. Department of Energy by Lawrence Livermore National Laboratory; United States Department of Energy (DOE) Lawrence Livermore National Laboratory LDRD program NSF Graduate Research Fellowship Program; National Science Foundation (NSF) NA-241 / National Nuclear Security Administration's Office of International Nuclear Safeguards; National Nuclear Security Administration
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000473139000007
- Scopus ID
- 2-s2.0-85068602267
- Other Identifier
- 991019168100704721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Multidisciplinary