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

Journal Article · Thu Feb 15 00:00:00 EST 2018 · Nuclear Data Sheets

DOI:https://doi.org/10.1016/J.NDS.2018.02.004· OSTI ID:22879526

Trkov, A.; Capote, R. ^[1]; Nobre, G. P.A.; Brown, D. A.; Arcilla, R. ^[2]; Danon, Y. ^[3]; Plompen, A. ^[4]; Mughabghab, S. F. ^[2]; Jing, Q.; Zhigang, G.; Tingjin, L. ^[5]; Hanlin, L.; Xichao, R. ^[6]; Leal, L. ^[7]; Carlson, B. V. ^[8]; Kawano, T. ^[9]; Sin, M. ^[10]; Simakov, S. P. ^[11]; Guber, K. ^[12]

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1. NAPC-Nuclear Data Section, International Atomic Energy Agency, A-1040 Vienna (Austria)
2. National Nuclear Data Center, Brookhaven National Laboratory, Upton, NY 11973 (United States)
3. Rensselaer Polytechnic Institute, Troy, NY (United States)
4. European Commission, Joint Research Center, Retieseweg 111, B-2440, Geel (Belgium)
5. China Nuclear Data Center, P.O. Box 275-41, Beijing 102413 (China)
6. China Institute of Atomic Energy, P.O. Box 275-41, Beijing 102413 (China)
7. Oak Ridge National Laboratory, Oak Ridge, TN 37831-6171 (United States)
8. Departamento de Física, Instituto Tecnológico de Aeronáutica, 12228-900, SP, Sao José dos Campos (Brazil)
9. Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)
10. Nuclear Physics Department, Bucharest University, Bucharest-Magurele (Romania)
11. Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen (Germany)
12. Oak Ridge National Laboratory, Oak Ridge, TN 37831-6354 (United States)

A new suite of evaluations for {sup 54,56,57,58}Fe has been developed in the framework of the CIELO international collaboration. New resolved resonance ranges were evaluated for {sup 54}Fe and {sup 57}Fe, while modifications were applied to resonances in {sup 56}Fe. The low energy part of the {sup 56}Fe file is almost totally based on measurements. At higher energies in {sup 56}Fe 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.

• OSTI ID: 22879526
• Journal Information: Nuclear Data Sheets, Vol. 148; Other Information: © 2018 Published by Elsevier Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0090-3752
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
EVALUATION
FAST NEUTRONS
IRON 54
IRON 56
IRON 57
IRON 58
NEUTRON REACTIONS
NUCLEAR DATA COLLECTIONS