Provenance of uranium particulate contained within Fukushima Daiichi Nuclear Power Plant Unit 1 ejecta material
| Autor: | Ian A. X. Yang, Yukihiko Satou, Christoph Rau, J. Fred W. Mosselmans, Thomas Bligh Scott, Peter G. Martin, David Richards, Marion Louvel, Darren Batey, Christopher Jones, Keith R Hallam, Silvia Cipiccia |
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| Přispěvatelé: | Martin, Peter G [0000-0003-3395-8656], Jones, Christopher P [0000-0001-6633-9494], Hallam, Keith R [0000-0002-5789-1735], Mosselmans, J Fred W [0000-0001-6473-2743], Richards, David A [0000-0001-8389-8079], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
147/135 639/4077/4091/4094 Nuclear engineering Science 147 General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Nuclear material Characterization and analytical techniques 7. Clean energy 704/4111 General Biochemistry Genetics and Molecular Biology Nuclear decommissioning law.invention 03 medical and health sciences law Nuclear power plant Ejecta lcsh:Science 639/766/930/12 Nuclear waste Multidisciplinary business.industry Natural hazards article General Chemistry 639/301/930/12 Uranium Nuclear power Particulates 021001 nanoscience & nanotechnology 147/28 030104 developmental biology chemistry 13. Climate action Environmental science Particle 139 lcsh:Q 0210 nano-technology business |
| Zdroj: | Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019) Martin, P, Louvel, M, Cipiccia, S, Jones, C, Batey, D, Hallam, K, Ang Xing Yang, I, Satou, Y, Rau, C, Mosselmans, J F W, Richards, D & Scott, T 2019, ' Provenance of uranium particulate contained within Fukushima Daiichi Nuclear Power Plant Unit 1 ejecta material ', Nature Communications, vol. 10, 2801 (2019) . https://doi.org/10.1038/s41467-019-10937-z Nature Communications |
| ISSN: | 2041-1723 |
| Popis: | Here we report the results of multiple analytical techniques on sub-mm particulate material derived from Unit 1 of the Fukushima Daiichi Nuclear Power Plant to provide a better understanding of the events that occurred and the environmental legacy. Through combined x-ray fluorescence and absorption contrast micro-focused x-ray tomography, entrapped U particulate are observed to exist around the exterior circumference of the highly porous Si-based particle. Further synchrotron radiation analysis of a number of these entrapped particles shows them to exist as UO2—identical to reactor fuel, with confirmation of their nuclear origin shown via mass spectrometry analysis. While unlikely to represent an environmental or health hazard, such assertions would likely change should break-up of the Si-containing bulk particle occur. However, more important to the long-term decommissioning of the reactors at the FDNPP (and environmental clean-upon), is the knowledge that core integrity of reactor Unit 1 was compromised with nuclear material existing outside of the reactors primary containment. The larger particulates from reactor Unit 1 of the Fukushima Daiichi Nuclear Power Plant have received sparse attention compared to the Unit 2 particulate. Here the authors perform the higher-resolution and 3-dimentional analysis of several high-density micron-scale fragments, from within a larger Unit 1-derived representative ejecta particle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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