The distinct conditions of atmospheric and underground nuclear tests revealed by Zn isotopic compositions of nuclear debris samples

We analyzed the Zn isotopic compositions of nuclear debris samples from atmospheric and underground nuclear tests. Samples from the site of atmospheric tests exhibit a range of Zn isotopic fractionation (δ 66 Zn JMC-Lyon  = 0.23–0.86 ‰) while samples from underground tests exhibit Zn isotopic compos...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2024-02, Vol.333 (2), p.805-814
Main Authors: Torrano, Zachary A., Boggs, Mark A., Sanborn, Matthew E.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Composition
Debris
Diagnostic Radiology
Fractionation
Hadrons
Heavy Ions
Igneous rocks
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Open systems
Physical Chemistry
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Summary:We analyzed the Zn isotopic compositions of nuclear debris samples from atmospheric and underground nuclear tests. Samples from the site of atmospheric tests exhibit a range of Zn isotopic fractionation (δ 66 Zn JMC-Lyon  = 0.23–0.86 ‰) while samples from underground tests exhibit Zn isotopic compositions with minimal variation among samples and from terrestrial igneous rock standards (δ 66 Zn JMC-Lyon  = 0.28–0.39 ‰). The larger range of δ 66 Zn JMC-Lyon observed in atmospheric test samples relative to underground test samples is likely the result of the open system characteristics of atmospheric nuclear tests and the closed system characteristics of underground nuclear tests.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09291-8