Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste

One of the main concerns related to nuclear power production is the generation and accumulation of spent nuclear fuel. Currently most of the spent fuel is stored in interim storage facilities awaiting final disposal or reprocessing. The spent fuel is stored in isolation from the environment in prote...

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Main Authors: Paunov Petar, Naydenov Ivaylo
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01024.pdf
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author Paunov Petar
Naydenov Ivaylo
author_facet Paunov Petar
Naydenov Ivaylo
author_sort Paunov Petar
collection DOAJ
description One of the main concerns related to nuclear power production is the generation and accumulation of spent nuclear fuel. Currently most of the spent fuel is stored in interim storage facilities awaiting final disposal or reprocessing. The spent fuel is stored in isolation from the environment in protected facilities or specially designed containers. Nevertheless, spent fuel and highly active waste might get in the environment in case the protective barriers are compromised. In such a case, spent fuel may pose risk to the environment and human health. Those risks depend on the concentration of the given radionuclide and are measured by the value of potential danger. The potential danger is called also ’radiotoxicity’. The paper examines spent uranium and MOX fuels from a reference PWR, as well as the highly radioactive wastes of their reprocessing. The radiotoxicity of the four materials is examined and evaluated for a cooling time of 1000 years. The contribution of different radionuclides is assessed and the cases of reprocessing and no reprocessing of spent fuel have been compared.
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spelling doaj.art-f522513d548041a89a468b5c0543230f2022-12-21T19:39:02ZengEDP SciencesE3S Web of Conferences2267-12422020-01-012070102410.1051/e3sconf/202020701024e3sconf_fpepm2020_01024Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active WastePaunov Petar0Naydenov Ivaylo1Kozloduy NPPScientific and Technical Union of Power Engineers in BulgariaOne of the main concerns related to nuclear power production is the generation and accumulation of spent nuclear fuel. Currently most of the spent fuel is stored in interim storage facilities awaiting final disposal or reprocessing. The spent fuel is stored in isolation from the environment in protected facilities or specially designed containers. Nevertheless, spent fuel and highly active waste might get in the environment in case the protective barriers are compromised. In such a case, spent fuel may pose risk to the environment and human health. Those risks depend on the concentration of the given radionuclide and are measured by the value of potential danger. The potential danger is called also ’radiotoxicity’. The paper examines spent uranium and MOX fuels from a reference PWR, as well as the highly radioactive wastes of their reprocessing. The radiotoxicity of the four materials is examined and evaluated for a cooling time of 1000 years. The contribution of different radionuclides is assessed and the cases of reprocessing and no reprocessing of spent fuel have been compared.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01024.pdf
spellingShingle Paunov Petar
Naydenov Ivaylo
Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
E3S Web of Conferences
title Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
title_full Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
title_fullStr Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
title_full_unstemmed Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
title_short Long-Term Radiotoxicity Evaluation of PWR Spent Uranium and MOX Fuel and Highly Active Waste
title_sort long term radiotoxicity evaluation of pwr spent uranium and mox fuel and highly active waste
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/67/e3sconf_fpepm2020_01024.pdf
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