Characterization of uranium and plutonium containing particles originating from the nuclear weapons accident in Thule, Greenland, 1968
Copyright policy )Characterization of uranium and plutonium containing particles originating from the nuclear weapons accident in Thule, Greenland, 1968
To improve long-term radioecological impact assessment for the contaminated ecosystem of Bylot Sound, Greenland, U and Pu containing particles have been characterized with respect to particle size, elemental distribution, morphology and oxidation states. Based on scanning electron microscopy with XRMA, particles ranging from about 20 to 40 microm were isolated. XRMA and mu-XRF mapping demonstrated that U and Pu were homogeneously distributed throughout the particles, indicating that U and Pu have been fused. Furthermore, mu-XANES showed that U and Pu in the particles were present as mixed oxides. U was found to be in oxidation state IV whereas Pu apparently is a mixture of Pu(III) and Pu(IV). As previous assessments are based on PuO2 only, revisions should be made, taking Pu(III) into account.
Radioactive Fallout, Water Pollutants, Radioactive: analysis, Geologic Sediments, Water Pollutants, Radioactive, Plutonium: analysis, Greenland, Uranium: chemistry, Soil Pollutants, Radioactive: analysis, Accidents, Aviation: statistics & numerical data, Radiation Monitoring, Humans, Soil Pollutants, Radioactive, Geologic Sediments: analysis, Radioactive Hazard Release: statistics & numerical data, Uranium: analysis, Particle Size, Radioactive Fallout: analysis, info:eu-repo/classification/ddc/690, Radiation Monitoring: methods, Elementary Particle Interactions, Plutonium, Spectrometry, Gamma, Accidents, Aviation, Microscopy, Electron, Scanning, Autoradiography, Uranium, Plutonium: chemistry, Radioactive Hazard Release, Oxidation-Reduction, Synchrotrons, Electron Probe Microanalysis
Radioactive Fallout, Water Pollutants, Radioactive: analysis, Geologic Sediments, Water Pollutants, Radioactive, Plutonium: analysis, Greenland, Uranium: chemistry, Soil Pollutants, Radioactive: analysis, Accidents, Aviation: statistics & numerical data, Radiation Monitoring, Humans, Soil Pollutants, Radioactive, Geologic Sediments: analysis, Radioactive Hazard Release: statistics & numerical data, Uranium: analysis, Particle Size, Radioactive Fallout: analysis, info:eu-repo/classification/ddc/690, Radiation Monitoring: methods, Elementary Particle Interactions, Plutonium, Spectrometry, Gamma, Accidents, Aviation, Microscopy, Electron, Scanning, Autoradiography, Uranium, Plutonium: chemistry, Radioactive Hazard Release, Oxidation-Reduction, Synchrotrons, Electron Probe Microanalysis
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