Comparison of Integral Parameter Estimated Uncertainties in Fast Neutron Systems with COMMARA-2.1 and COMMARA-2.0 Covariance Data

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Nuclear Data Sheets

DOI:https://doi.org/10.1016/J.NDS.2014.12.013· OSTI ID:22436761

Palmiotti, G.; Salvatores, M. ^[1]

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1. Idaho National Laboratory, Idaho Falls, ID 83415 (United States)

This paper shows the main differences between the COMMARA-2.0 and COMMARA-2.1 evaluated covariance data in the uncertainty estimation of integral parameters of interest for a large number of typical innovative fast neutron systems. The study provides some guidelines to the nuclear data evaluators on which materials and which reaction types need to be evaluated most accurately to achieve reliable results in computational analyses of similar systems. The assessment of the quality and reliability of the covariance data is outside the scope of the study.

• OSTI ID: 22436761
• Journal Information: Nuclear Data Sheets, Vol. 123; Conference: International workshop on nuclear data covariances, Santa Fe, NM (United States), 28 Apr - 1 May 2014; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; 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
COMPARATIVE EVALUATIONS
DATA
DATA COVARIANCES
FAST NEUTRONS
NUCLEAR DATA COLLECTIONS