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- Title
Development of rapid methodologies for uranium age dating.
- Authors
Higginson, Matthew; Gilligan, Chris; Taylor, Fiona; Knight, Darrell; Kaye, Philip; Shaw, Thomas; Thompson, Pamela
- Abstract
The measured model age is an important signature to constrain the production history of an unknown nuclear material. The aim of this work was to validate a rapid, robust quantification scheme for bulk uranium materials, amenable to multiple detection platforms. This work describes a combination of stacked columns, vacuum assisted separations, automation and a suite of analysis techniques to determine the ages of uranium materials and CRMs of known production history. The methodology allows for the determination of 234U/230Th and 235U/231Pa atom ratios via a novel approach, starting with a three resin column separation to allow high throughput and rapid turnaround. The materials analysed have concordant ages with known production histories, leading to the potential for expanding this work to additional chronometers, and the approach offers nuclear forensic practitioners an additional, advantageous separation methodology in the analysis of bulk uranium materials.
- Subjects
ANALYTICAL radiochemistry; RADIOCHEMICAL analysis; ACTINIDE elements; RADIOCHEMICAL separation; URANIUM
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 318, Issue 1, p157
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-018-6021-z