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Uncertainty Quantification in Application of the Enrichment Meter Principle for Nondestructive Assay of Special Nuclear Material
Joint Authors
Burr, Tom
Croft, Stephen
Jarman, Ken
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-06
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Nondestructive assay (NDA) of special nuclear material (SNM) is used in nonproliferation applications, including identification of SNM at border crossings, and quantifying SNM at safeguarded facilities.
No assay method is complete without “error bars,” which provide one widely used way to express confidence in assay results.
NDA specialists typically partition total uncertainty into “random” and “systematic” components so that, for example, an error bar can be developed for the SNM mass estimate in one item or for the total SNM mass estimate in multiple items.
Uncertainty quantification (UQ) for NDA has always been important, but greater rigor is needed and achievable using modern statistical methods.
To this end, we describe the extent to which the guideline for expressing uncertainty in measurements (GUM) can be used for NDA.
Also, we describe possible extensions to the GUM by illustrating UQ challenges in NDA that it does not address, including calibration with errors in predictors, model error, and item-specific biases.
A case study is presented using gamma spectra and applying the enrichment meter principle to estimate the 235U mass in an item.
The case study illustrates how to update the ASTM international standard test method for application of the enrichment meter principle using gamma spectra.
American Psychological Association (APA)
Burr, Tom& Croft, Stephen& Jarman, Ken. 2015. Uncertainty Quantification in Application of the Enrichment Meter Principle for Nondestructive Assay of Special Nuclear Material. Journal of Sensors،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1070088
Modern Language Association (MLA)
Burr, Tom…[et al.]. Uncertainty Quantification in Application of the Enrichment Meter Principle for Nondestructive Assay of Special Nuclear Material. Journal of Sensors No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1070088
American Medical Association (AMA)
Burr, Tom& Croft, Stephen& Jarman, Ken. Uncertainty Quantification in Application of the Enrichment Meter Principle for Nondestructive Assay of Special Nuclear Material. Journal of Sensors. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1070088
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070088