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Micro-Raman spectroscopy combined with alpha track detection to identify chemical forms of uranium particles

Yomogida, Takumi   ; Esaka, Fumitaka  ; Magara, Masaaki  

In this study, we developed a micro-Raman spectroscopy technique combined with alpha track-detection to identify chemical forms of uranium particles. U$$_{3}$$O$$_{8}$$ and UO$$_{2}$$ particles were used as samples. Films containing uranium-bearing particles were exposed to alpha track detectors (TNF-1) for a few months. The location of uranium particles in the films were identified by observing alpha tracks which caused by spontaneous fission of uranium. The characteristic Raman bands which derive from U$$_{3}$$O$$_{8}$$ and UO$$_{2}$$ structures were observed in the Raman spectra of uranium particles.

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