| 英文摘要 | In October 2017, most European countries reported unique atmospheric detections of aerosol-bound radioruthenium (106Ru). The range of concentrations varied from some tenths of μBq·m-3 to more than 150 mBq·m-3. The widespread detection at such considerable (yet innocuous) levels suggested a considerable release. To compare activity reports of airborne 106Ru with different sampling periods, concentrations were reconstructed based on the most probable plume presence duration at each location. Based on airborne concentration spreading and chemical considerations, it is possible to assume that the release occurred in the Southern Urals region (Russian Federation). The 106Ru age was estimated to be about 2 years. It exhibited highly soluble and less soluble fractions in aqueous media, high radiopurity (lack of concomitant radionuclides), and volatility between 700 and 1,000 °C, thus suggesting a release at an advanced stage in the reprocessing of nuclear fuel. The amount and isotopic characteristics of the radioruthenium release may indicate a context with the production of a large 144Ce source for a neutrino experiment. © 2019 National Academy of Sciences. All rights reserved. |
| 作者单位 | Masson, O., Direction de l'Environnement, Institut de Radioprotection et de Sûreté Nucléaire, St Paul lez Durance, 13115, France; Steinhauser, G., Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, Hannover, 30419, Germany; Zok, D., Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, Hannover, 30419, Germany; Saunier, O., Service des Situations d'Urgence et d'Organisation de Crise, Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-Aux-Roses, 92260, France; Angelov, H., Basic Environmental Observatory Moussala, Institute for Nuclear Research and Nuclear Energy, Sofia, BG-1784, Bulgaria; Babić, D., Institute for Medical Research and Occupational Health, Zagreb, 10001, Croatia; Bečková, V., Section of Monitoring, National Radiation Protection Institute, Prague 4, 140 00, Czech Republic; Bieringer, J., Atmosphärische Radioaktivität und Spurenanalyse, Bundesamt für Strahlenschutz, Freiburg im Breisgau, 79098, Germany; Bruggeman, M., Studie...
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| APA |
Masson O..,Steinhauser G..,Zok D..,Saunier O..,Angelov H..,...&Zorko B..(2019).Airborne concentrations and chemical considerations of radioactive ruthenium from an undeclared major nuclear release in 2017.Proceedings of the National Academy of Sciences of the United States of America,116(34).
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