Uranium assay determination using Davies and Gray titration: An overview and implementation of GUM for uncertainty evaluation

K. J. Mathew; S. Bürger; S. Vogt; P. Mason; M. E. Morales-Arteaga; U. I. Narayanan

doi:10.1007/s10967-009-0186-4

Uranium assay determination using Davies and Gray titration: An overview and implementation of GUM for uncertainty evaluation

K. J. Mathew, S. Bürger, S. Vogt, P. Mason, M. E. Morales-Arteaga, U. I. Narayanan

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

The International Organization for Standardization (ISO) Guide to the expression of Uncertainty in Measurement (GUM) was developed to meet the demand for a standardized way of evaluating and expressing uncertainties. The Davies and Gray (D&G) titrimetry method is routinely used in nuclear safeguards for uranium accountability measurement and a statement of the uncertainty that can reasonably be attributed to the measured assay value is therefore of importance. A mathematical model for an uncertainty evaluation of D&G measurements in compliance with ISO GUM is presented. This is illustrated by a numerical example and the utilization of the uncertainty budget is explored.

Original language	English
Pages (from-to)	939-944
Number of pages	6
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	282
Issue number	3
DOIs	https://doi.org/10.1007/s10967-009-0186-4
State	Published - Dec 2009
Externally published	Yes

Keywords

Davies and Gray Titration
ISO GUM
Safeguards measurements
Uncertainties
Uranium assay

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10.1007/s10967-009-0186-4

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abstract = "The International Organization for Standardization (ISO) Guide to the expression of Uncertainty in Measurement (GUM) was developed to meet the demand for a standardized way of evaluating and expressing uncertainties. The Davies and Gray (D&G) titrimetry method is routinely used in nuclear safeguards for uranium accountability measurement and a statement of the uncertainty that can reasonably be attributed to the measured assay value is therefore of importance. A mathematical model for an uncertainty evaluation of D&G measurements in compliance with ISO GUM is presented. This is illustrated by a numerical example and the utilization of the uncertainty budget is explored.",

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AU - Vogt, S.

AU - Mason, P.

AU - Morales-Arteaga, M. E.

AU - Narayanan, U. I.

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AB - The International Organization for Standardization (ISO) Guide to the expression of Uncertainty in Measurement (GUM) was developed to meet the demand for a standardized way of evaluating and expressing uncertainties. The Davies and Gray (D&G) titrimetry method is routinely used in nuclear safeguards for uranium accountability measurement and a statement of the uncertainty that can reasonably be attributed to the measured assay value is therefore of importance. A mathematical model for an uncertainty evaluation of D&G measurements in compliance with ISO GUM is presented. This is illustrated by a numerical example and the utilization of the uncertainty budget is explored.

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Uranium assay determination using Davies and Gray titration: An overview and implementation of GUM for uncertainty evaluation

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