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Title: CIELO Collaboration Summary Results: International Evaluations of Neutron Reactions on Uranium, Plutonium, Iron, Oxygen and Hydrogen

Journal Article · · Nuclear Data Sheets

The CIELO collaboration has studied neutron cross sections on nuclides that significantly impact criticality in nuclear technologies - 235,238U, 239Pu, 56Fe, 16O and 1H - with the aim of improving the accuracy of the data and resolving previous discrepancies in our understanding. This multi-laboratory pilot project, coordinated via the OECD/NEA Working Party on Evaluation Cooperation (WPEC) Subgroup 40 with support also from the IAEA, has motivated experimental and theoretical work and led to suites of new evaluated libraries that accurately reflect measured data and also perform well in integral simulations of criticality. This report summarizes our results on cross sections and preliminary work on covariances, and outlines plans for the next phase of this collaboration.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
CIELO Collaboration
Grant/Contract Number:
SC0012704; AC52-06NA25396; AC05-00OR22725; AC52-07NA27344
OSTI ID:
1427376
Alternate ID(s):
OSTI ID: 1425121; OSTI ID: 1438741; OSTI ID: 1462853
Report Number(s):
LA-UR-17-27490; BNL-200019-2018-JAAM; LLNL-JRNL-744041; TRN: US1802458
Journal Information:
Nuclear Data Sheets, Vol. 148, Issue C; ISSN 0090-3752
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 54 works
Citation information provided by
Web of Science

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Cited By (4)

Neutron inelastic scattering on 54Fe journal October 2018
IRDFF-II: A New Neutron Metrology Library journal January 2020
Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data journal January 2020
Modeling photon--induced reactions on $^{233-238}$U actinide targets text January 2019