Дослідження різних видів бетонів для біологічного захисту контейнерів HI-STORM

• Datum: 2022
• Hauptverfasser: Romanenko, I., Trofymenko, O., Holiuk, M., Pysmennyy, Y., Nosovskyi, A.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: State Scientific and Technical Center for Nuclear and Radiation Safety 2022
• Online Zugang: https://nuclear-journal.com/index.php/journal/article/view/920
• Назва журналу: Nuclear and Radiation Safety

Despite all the advantages of nuclear energy, the issue of spent nuclear fuel (SNF) remains a problem for the nuclear industry. To date, both in the world and in Ukraine, the concept of deferred solution has been adopted, according to which spent fuel is temporarily stored until it is processed for reuse or final disposal. In Ukraine, the implementation of this concept is based on the technology of long-term dry storage developed by Holtec International. According to this technology, spent fuel should be stored in special casks called HI-STORM, whose main protective barrier against radiation is concrete biological protection. The article considers the possibility of using different concretes for biological protection in HI-STORM casks for temporary storage of spent fuel and radiation protection. Formulations of improved concrete with crashed granite, crashed basalt and a new composite material reinforced with basalt-boron fiber with different addition of boron oxide concentration are presented. The Monte Carlo Serpent code was used to model the passage of neutron radiation through biological protection materials. It is shown that the addition of basalt-boron fiber in concrete improves the protective properties of biological protection against neutron radiation.