EDN: JPHWMW
Authors & Affiliations
Ulyakhin S.M.2, Tykleeva K.V.1, Grabezhnoy V.N.1, Zabrodskaya S.V.1, Legkih K.G.1, Smykov V.B.1
1 A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
2 Obninsk Institute for Nuclear Power Engineering National Research Nuclear University MEPhI, Obninsk, Russia
Ulyakhin S.M.2 – Trainee researcher. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-70-00 (add. 44-07); e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Tykleeva K.V.1 – Researcher.
Grabezhnoy V.N.1 – Senior Researcher, PhD. Sci. (Phys.-Math.).
Zabrodskaya S.V.1 – Leading researcher, PhD. Sci. (Phys.-Math.).
Legkih K.G.1 – Head of Laboratory.
Smykov V.B.1 – Head of the Department, PhD. Sci. (Phys.).
Abstract
In world practice, experience has been gained in processing large volumes of radioactive alkaline coolants in connection with the decommissioning of nuclear power plants. JSC SSC RF – FEI analyzed various methods of processing alkali metals and developed its own methods. One of them is the solid-phase oxidation of alkali metal by copper smelting slag (TFO method). Currently, the technical implementation of the TFO method is moving from experimental devices (MINERAL-3, MINERAL-30, MINERAL-50) and work sites (the MAGMA module as part of the BR-10 pilot plant) to a fully functional sample of the MINERAL plant for sodium utilization in order to convert it into safe forms acceptable for long-term storage or burial. When working with an installation for processing spent alkaline liquid metal coolants (sodium, sodium-potassium), it is necessary to take into account the dose load received by personnel and to know the maximum allowable time spent by personnel in the immediate vicinity of this installation. In this paper, the installation model for the implementation of the TFO method was considered, and preliminary results were obtained on the maximum effective doses at certain stages of the device's operation. These results can be used in the development and implementation of a concept for the selection of reference Na processing technologies for the purpose of further dissemination of technologies during decommissioning of fast reactors with a sodium coolant.
Keywords
fast reactor, sodium processing, slag-like compound, solid-phase oxidation method, RW, MINERAL-3, MINERAL-30, MINERAL-50, BR-10, MAGMA module, effective dose
Article Text (PDF, in Russian)
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UDC 621.181.6
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 4, 4:8
