Benchmark Testing of a New ⁵⁶Fe Evaluation for Criticality Safety Applications

Conference · Thu Jan 01 00:00:00 EST 2015

OSTI ID:1215584

Leal, Luiz C ^[1]; Ivanov, E. ^[2]

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1. ORNL
2. Institut de Radioprotection et de Surete Nucleaire

The SAMMY code was used to evaluate resonance parameters of the ⁵⁶Fe cross section in the resolved resonance energy range of 0–2 MeV using transmission data, capture, elastic, inelastic, and double differential elastic cross sections. The resonance analysis was performed with the code SAMMY that fits R-matrix resonance parameters using the generalized least-squares technique (Bayes’ theory). The evaluation yielded a set of resonance parameters that reproduced the experimental data very well, along with a resonance parameter covariance matrix for data uncertainty calculations. Benchmark tests were conducted to assess the evaluation performance in benchmark calculations.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1215584
• Resource Relation: Conference: ICNC 2015, Charlotte, NC, USA, 20150913, 20150917
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
neutron cross section
data evaluation
resonance
benchmark results