Journal
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
Volume 36, Issue 1, Pages 150-156Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ja00416b
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Funding
- Sandia National Labs' LDRD Office [SAND2020-9478 J]
- DOE NNSA [DE-NA0003525]
- U.S. DOE [DE-AC05-76RLO1830]
- Department of the Defense, Defense Threat Reduction Agency [HDTRA1-20-2-0001]
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Results and analysis from laser ablation experiments were used to study high-temperature plutonium (Pu) spectroscopy and gas-phase oxidation. Time-resolved emission spectra were compared to a Pu I spectral model to infer plasma temperature. At later times in the plasma evolution, lower temperatures and resonant emission bands indicative of molecular species, possibly plutonium oxides (PuxOy), were observed.
We report results and analysis from a series of laser ablation experiments conducted to study high-temperature plutonium (Pu) spectroscopy and gas-phase oxidation. Time-resolved emission spectra were compared to a Pu I spectral model to infer plasma temperature. At later times in the laser-produced plasma evolution, temperatures are lower, and resonant emission bands indicative of molecular species are observed. We tentatively assign these bands to plutonium oxides (PuxOy).
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