Институт физической химии и электрохимии имени А. Н. Фрумкина РАН, Москва 3 Институт проблем безопасного развития атомной энергетики РАН, Москва 4 АО «Опытно-демонстрационный центр вывода из эксплуатации уран-графитовых ядерных реакторов», г. Северск Статья поступила в редакцию 7 мая 2019 г Рассмотрено состо ние работ и исследовани по обра ени с облу енным реакторным ра итом редло ены варианты оптими а ии расходов на ахоронение Р вкл а ра работку и применение методов де актива ии сни ени активности ра итовых Р сни ени стоимости про едур конди ионировани Р а так е со дание спе иали ированно о пункта ахоронени Р писаны основные пути дл достиени про ресса и уто нени плана исследовани и ра работок в асти удалени ра ита на ахоронение Ключевые слова: радиоактивные отходы радиоу лерод реакторны ра ит уран ра итовы реактор ахоронение Р пункт ахоронени Р
The paper discusses engineering, economic and legislative aspects influencing the ways of addressing the problem associated with the final stage of irradiated graphite management from water-graphite NPP reactor units in Russia. It presents some calculated and experimental data demonstrating the feasibility of introducing some corrective changes to the legislative and regulatory framework existing in the Russian Federation to enable near-surface disposal of irradiated graphite from power reactors.
This paper presents some methodological approaches to the characterization of graphite blocks based on difficultto-measure 14C and 36Cl radionuclides during graphite stack dismantlement at uranium-graphite reactors (UGR) developed by JSC PDC UGR. It presents the testing results of the developed methods applied during RBMK-1000 graphite stack block characterization at the Leningrad NPP.
This paper presents technical and methodological approaches developed by PDC UGR to characterize the removed graphite blocks by gamma-emitting radionuclides during graphite stack dismantlement and to enable their packaging. It overviews the experimental testing of the characterization method and its findings. It also presents container design option allowing to achieve the maximum filling efficiency.
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