Abstract
Some example applications are presented, in which the peculiar Raman fingerprint of PuO2 can be used for the detection of crystalline Pu4+ with cubic symmetry in an oxide environment in various host materials, like mixed oxide fuels, inert matrices and corium sub-systems. The PuO2 Raman fingerprint was previously observed to consist of one main T2g vibrational mode at 478 cm−1 and two crystal electric field transition lines at 2130 cm−1 and 2610 cm−1. This particular use of Raman spectroscopy is promising for applications in nuclear waste management, safety and safeguard.
Highlights
Some example applications are presented, in which the peculiar Raman fingerprint of PuO2 can be used for the detection of crystalline Pu4þ with cubic symmetry in an oxide environment in various host materials, like mixed oxide fuels, inert matrices and corium sub-systems
This particular use of Raman spectroscopy is promising for applications in nuclear waste management, safety and safeguard
Since in PuO2 these transitions occur within the ground 5I4 manifold, unlike the 3H4->3F2 intermultiplet transitions observed for example in UO2, they take place at a relatively low energy and are observable in the standard Raman spectra of plutonium dioxide
Summary
The Raman fingerprint of plutonium dioxide: Some example applications for the detection of PuO2 in host matrices
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