Updated uranium reference material 231Pa/235U consensus model ages for nuclear forensics
Radiochronometry provides the model age of nuclear materials, which is useful for understanding the production history of materials found outside of regulatory control. Certified reference materials (CRMs) are important for radiochronometry to increase confidence in measurement quality; however, the absence of 235U-231Pa CRMs necessitates that nuclear forensic laboratories measure the 235U-231Pa model ages of preexisting uranium reference materials. Here, new consensus 235U-231Pa model ages are reported from three nuclear forensic laboratories for three reference materials using current analytical methods. These updated consensus values can be used for quality control of 235U-231Pa model age measurements.
EDWARDS Mark A.;
VARGA Zsolt;
GAFFNEY Amy;
DENTON Joanna;
ENGEL John R.;
GONZALES Matt;
KAYZAR-BOGGS Theresa;
MAYER Klaus;
NICHOLL Adrian;
SANBORN Matt;
STEINER Robert E.;
TARNG Cheng;
TREINEN K.C.;
WALLENIUS Maria;
WENDE Allison;
2024-12-11
SPRINGER
JRC137211
0236-5731 (online),
https://link.springer.com/article/10.1007/s10967-024-09818-7,
https://publications.jrc.ec.europa.eu/repository/handle/JRC137211,
10.1007/s10967-024-09818-7 (online),
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