Radiation-induced modifications in copper oxide growth

Cu samples were irradiated with 10 MeV Au 3+ ions at 200 °C to damage levels of 5, 10, and 15 displacements per atom (dpa) as an analogue to study long term self-irradiation effects of alpha-decay in Pu. Samples were then subject to accelerated aging at 350 °C for 1 h in air resulting in mixed oxide...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2021, Vol.327 (1), p.123-131
Hauptverfasser: Bishop, Jessica L., Cureton, Will F., Crespillo, Miguel L., Koehler, Michael, Auxier II, John D., Lang, Maik
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Sprache:eng
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Zusammenfassung:Cu samples were irradiated with 10 MeV Au 3+ ions at 200 °C to damage levels of 5, 10, and 15 displacements per atom (dpa) as an analogue to study long term self-irradiation effects of alpha-decay in Pu. Samples were then subject to accelerated aging at 350 °C for 1 h in air resulting in mixed oxide layer growth (Cu 2 O and CuO). Raman spectroscopy revealed that the CuO phase fraction was gradually decreased as the damage level increased. These findings indicate that accumulated damage from self-irradiation causes quantifiable modifications in metal oxidation that could serve as a novel forensic signature.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-020-07486-x