New Nuclear Data Evaluations for Ca, Sc, Fe, Ge, Pb, and Bi Isotopes

Journal Article · Tue May 24 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1945038· OSTI ID:20722586

Koning, A J; Duijvestijn, M C; Marck, S.C. van der; Meulekamp, R Klein; Hogenbirk, A ^[1]

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1. Nuclear Research and Consultancy Group NRG, P.O. Box 25, NL-1755 ZG Petten (Netherlands)

New ENDF-6 formatted nuclear data evaluations are presented for all natural isotopes of Ca, Sc, Fe, Ge, Pb, and Bi. Apart from the resonance range and low-energy total cross sections, which we have adopted from the best available library, the nuclear data evaluations are completely revised up to 20 MeV, and moreover are extended up to 200 MeV. This collection of isotopic evaluations, called NRG-2003, is created with the nuclear-model code TALYS using input parameters that deviate only slightly, or not at all, from the default values. These model-input parameters have been tuned to the available experimental data. All evaluations presented here are thus of comparable quality: For each isotope, we use the same set of nuclear models and, equally important, the same set of ENDF-6 formatting procedures. We have made these evaluations complete in their description of reaction channels. The data, which are stored in a compact way, include cross sections, angular distributions, double-differential spectra, discrete and continuum photon-production cross sections, and residual production (activation) cross sections including isomers. We have validated the new evaluations with a few criticality and shielding benchmarks. The data files will be proposed for inclusion in JEFF-3.1.

• OSTI ID: 20722586
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 769; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BENCHMARKS
BISMUTH ISOTOPES
CALCIUM ISOTOPES
CRITICALITY
EVALUATION
GERMANIUM ISOTOPES
IRON ISOTOPES
ISOMERIC NUCLEI
LEAD ISOTOPES
MEV RANGE
NUCLEAR DATA COLLECTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
RESONANCE
SCANDIUM ISOTOPES
SHIELDING
TOTAL CROSS SECTIONS