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|Title:||Methodology for the preparation and validation of plutonium age dating materials|
|Authors:||VARGA ZSOLT; NICHOLL ADRIAN; ZSIGRAI JOZSEF; WALLENIUS MARIA; MAYER KLAUS|
|Citation:||ANALYTICAL CHEMISTRY vol. 90 no. 6 p. 4019-4024|
|Publisher:||AMER CHEMICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||The present work describes a method for the preparation and validation of plutonium age dating reference materials. The test samples prepared in this context could be used to validate experimental protocols for determining the production date of plutonium via the 234U/238Pu, 235U/239Pu, 236U/240Pu and 241Am/241Pu chronometers. The starting material was prepared using reactor-grade plutonium, which was purified using a dedicated method to guarantee high Pu recovery, while maximizing U and Am separation efficiencies. The U and Am separation factors were determined by the addition of high-amounts of 233U and 243Am spikes and their re-measurement in the final product. The prepared material is intended for quality control and assessment of method performance in nuclear forensics and safeguards.|
|JRC Directorate:||Nuclear Safety and Security|
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