A-priori and A-posteriori Covariance Data in Nuclear Cross Section Adjustments: Issues and Challenges

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

DOI:https://doi.org/10.1016/J.NDS.2014.12.008· OSTI ID:22436756

Salvatores, M. ^[1]; Aliberti, G. ^[2]

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1. Idaho National Laboratory, Idaho Falls, ID 83415 (United States)
2. Argonne National Laboratory, Argonne, IL 60439 (United States)

In order to provide useful feedback to evaluators a set of criteria are established for assessing the robustness and reliability of the cross section adjustments that make use of integral experiment information. Criteria are also provided for accepting the “a posteriori” cross sections, both as new “nominal” values and as “trends”. Some indications of the use of the “a posteriori” covariance matrix are indicated, even though more investigation is needed to settle this complex subject.

• OSTI ID: 22436756
• 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
DATA
DATA COVARIANCES
FEEDBACK
NUCLEAR REACTIONS
TOTAL CROSS SECTIONS