E. Zakharova, A. Volkova, R. Kan, S. Kotlyarevsky, A. Pavliuk
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Spatial distribution studies of activation radionuclides in graphite of uranium-graphite reactors
The paper presents the results of studies of the spatial distribution of radionuclides14C,36Cl and60Co, which are key for decommissioning uranium-graphite reactors, in graphite stacks and individual graphite blocks. The studies were carried out on a shutdown PUGR ADE-5 of «PDC UGR» JSC, which provides access to the graphite stack with the ability to extract individual graphite blocks. Based on the results of a detailed experimental study of graphite blocks retrieved in 2018, the new interpretations of some features of the spatial distribution of radionuclides in UGR graphite was proposed.
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