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The CIELO Collaboration: Progress in International Evaluations of Neutron Reactions on Oxygen, Iron, Uranium and Plutonium

Conference ·
The CIELO collaboration has studied neutron cross sections on nuclides that significantly impact criticality in nuclear technologies - 16O, 56Fe, 235,8U and 239Pu - with the aim of reducing uncertainties 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.
Research Organization:
Idaho National Laboratory, Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE)
DOE Contract Number:
AC07-05ID14517
OSTI ID:
1393146
Report Number(s):
INL/CON-16-40355
Country of Publication:
United States
Language:
English

References (18)

New fit of thermal neutron constants (TNC) for 233,235 U, 239,241 Pu and 252 Cf(sf): Microscopic vs. maxwellian data journal January 2017
Statistical Hauser-Feshbach theory with width-fluctuation correction including direct reaction channels for neutron-induced reactions at low energies journal July 2016
Note on 238 U + n Resolved Resonance Energies journal April 1978
An ENDF-6 compatible evaluation for neutron induced reactions of 232Th in the unresolved resonance region journal July 2008
Neutron capture cross section measurements for 238U in the resonance region at GELINA journal June 2016
Physics of Neutron Interactions with 238U: New Developments and Challenges journal April 2014
Prompt Fission Neutron Spectra of Actinides journal January 2016
Coherent investigation of nuclear data at CEA DAM: Theoretical models, experiments and evaluated data journal August 2012
Progress in microscopic direct reaction modeling of nucleon induced reactions journal December 2015
Precise Measurement and Analysis of Neutron Transmission Through Uranium-238 journal March 1977
Measurements and calculations of U 238 ( n , x n γ ) partial γ -ray cross sections journal February 2004
Use of new ENDF/B-VI proton and neutron cross sections for single event upset calculations journal January 1999
Particle-hole state densities with linear momentum and angular distributions in preequilibrium reactions journal November 1992
ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data journal December 2011
Neutron Resonance Parameters of 238U and the Calculated Cross Sections from the Reich-Moore Analysis of Experimental Data in the Neutron Energy Range from 0 keV to 20 keV report December 2005
The CIELO Collaboration: Neutron Reactions on 1H, 16O, 56Fe, 235,238U, and 239Pu journal April 2014
Rotational-vibrational Description of Nucleon Scattering on Actinide Nuclei Using a Dispersive Coupled-channel Optical Model journal April 2014
ENDF/B-VII.1 Neutron Cross Section Data Testing with Critical Assembly Benchmarks and Reactor Experiments journal December 2011

Cited By (1)

Checking, processing and verification of nuclear data covariances journal January 2018

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The CIELO collaboration: Progress in international evaluations of neutron reactions on Oxygen, Iron, Uranium and Plutonium
Journal Article · Sat Dec 31 19:00:00 EST 2016 · EPJ Web of Conferences · OSTI ID:1394596