caa a22 4500 606150781 CHVBK 20210128100540.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10512-015-0005-7 doi (NATIONALLICENCE)springer-10.1007/s10512-015-0005-7 Modeling of 14C Diffusion from the Core of the Decommissioned ad Reactor [Elektronische Daten] [M. Antonenko, D. Chubreev, G. Kuznetsov] A mathematical model of the diffusion of radionuclides through engineered safety barriers is developed for 14C in order to determine the long-term safety conditions and characteristics of a decommissioned commercial uranium-graphite reactor. Dry and wet mixtures and concrete are used as the barrier materials. Diffusion is studied as the dominant mechanism for the transport of the radionuclides. The 14C concentration at the boundary between the radwaste storage site and the environment is determined computationally and the effect of the modeling conditions on the specific activity of the radionuclide is analyzed. The decomposition sequence of the safety barriers for which the 14C concentration is much lower than the admissible value is determined. Springer Science+Business Media New York, 2015 Antonenko M. Mining and Chemical Combine, Zheleznogorsk, Russia aut Chubreev D. Mining and Chemical Combine, Zheleznogorsk, Russia aut Kuznetsov G. National Research Tomsk Polytechnic University, Tomsk, Russia aut Atomic Energy Springer US; http://www.springer-ny.com 118/5(2015-09-01), 346-350 1063-4258 118:5<346 2015 118 10512 https://doi.org/10.1007/s10512-015-0005-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10512-015-0005-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Antonenko M. Mining and Chemical Combine, Zheleznogorsk, Russia aut NATIONALLICENCE 700 1- Chubreev D. Mining and Chemical Combine, Zheleznogorsk, Russia aut NATIONALLICENCE 700 1- Kuznetsov G. National Research Tomsk Polytechnic University, Tomsk, Russia aut NATIONALLICENCE 773 0- Atomic Energy Springer US; http://www.springer-ny.com 118/5(2015-09-01), 346-350 1063-4258 118:5<346 2015 118 10512