Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

Date

2020

Authors

Capote, Roberto
Badikov, S
Carlson, A.D.
Duran, I
Gunsing, F
Neudecker, D
Pronyaev, V G
Schillebeeckx, P
Schnabel, G
Smith, D.L.

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

Evaluated nuclear data uncertainties reported in the literature or archived in data libraries are often perceived as unrealistic, most often because they are thought to be too small. The impact of this issue in applied nuclear science has been discussed widely in recent years. Commonly suggested causes are: poor estimates of specific error components, neglect of uncertainty correlations, and overlooked known error sources. However, instances have been reported where very careful, objective assessments of all known error sources have been made with realistic error magnitudes and correlations provided, yet the resulting evaluated uncertainties still appear to be inconsistent with observed scatter of predicted mean values. These discrepancies might be attributed to significant unrecognized sources of uncertainty (USU) that limit the accuracy to which these physical quantities can be determined.

Description

Keywords

Citation

Source

Nuclear Data Sheets

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.nds.2019.12.004

Restricted until

2099-12-31