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Title: Evaluation of Neutron Reactions on Iron Isotopes for CIELO and ENDF/B-VIII.0

A new suite of evaluations for 54,56,57,58Fe has been developed in the framework of the CIELO international collaboration. New resolved resonance ranges were evaluated for 54Fe and 57Fe, while modifications were applied to resonances in 56Fe. The low energy part of the 56Fe file is almost totally based on measurements. At higher energies in 56Fe and in the whole fast neutron range for minor isotopes the evaluation consists of model predictions carefully adjusted to available experimental data. We also make use of the high quality and well experimentally-constrained dosimetry evaluations from the IRDFF library. Special attention was dedicated to the elastic angular distributions, which were found to affect results of the integral benchmarking. The new set of iron evaluations was developed in concert with other CIELO evaluations and they were tested together in the integral experiments before being adopted for the ENDF/B-VIII.0 library.
Authors:
 [1] ;  [2] ;  [2] ;  [1] ;  [1] ;  [1] ;  [3] ;  [4] ;  [1] ;  [5] ;  [5] ;  [5] ;  [6] ;  [6] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Intl Atomic Energy Agency (IAEA), Vienna (Austria)
  3. Rensselaer Polytechnic Inst., Troy, NY (United States)
  4. European Commission, Geel (Belgium). Joint Research Centre
  5. China Nuclear Data Center, Beijing (China)
  6. China Inst. of Atomic Energy (CIAE), Beijing (China)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Inst. de Radioprotection et de Sûrete Nucleaire (ISRN), Paris (France)
  8. Comando-Geral de Tecnologia Aerospacial (CTA), Sao Jose dos Campos (Brazil). Inst. Tecnologico de Aeronautica (ITA)
  9. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  10. Bucharest Univ. (Romania)
  11. Karlsruhe Inst. of Technology (KIT) (Germany)
  12. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Nuclear Data Sheets
Additional Journal Information:
Journal Volume: 148; Journal Issue: C; Journal ID: ISSN 0090-3752
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1436926