Round-robin 230Th–234U age dating of bulk uranium for nuclear forensics

Round-robin 230Th–234U age dating of bulk uranium for nuclear forensics

We report that in an inter-laboratory measurement comparison study, four laboratories determined 230Th–234U model ages of uranium certified reference material NBL U050 using isotope dilution mass spectrometry. The model dates determined by the participating laboratories range from 9 March 1956 to 19...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2015-07
Hauptverfasser: Gaffney, Amy M., Hubert, Amélie, Kinman, William S., Magara, Masaaki, Okubo, Ayako, Pointurier, Fabien, Schorzman, Kerri C., Steiner, Robert E., Williams, Ross W.
Format: Artikel
Sprache:eng
Schlagworte:
230Th–234U age dating
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
nuclear forensics
RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
radiochronometry
TH -²³⁴U age dating
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Zusammenfassung:We report that in an inter-laboratory measurement comparison study, four laboratories determined 230Th–234U model ages of uranium certified reference material NBL U050 using isotope dilution mass spectrometry. The model dates determined by the participating laboratories range from 9 March 1956 to 19 October 1957, and are indistinguishable given the associated measurement uncertainties. These model ages are concordant with to slightly older than the known production age of NBL U050.
ISSN:0236-5731