An accelerator-blanket system with a proton accelerator and lead-bismuth coolant for transmuting Np, Am, and Cm is examined. The proton accelerator power is 10 MW, the proton energy 1 GeV and the blanket power 330 MW with blanket subcriticality ΔK = 0.05. It is shown that the use of an accelerator-blanket system in symbiosis with operating VVER-1000 reactors makes it possible to lower the radioactivity of the wastes about 20-fold and to satisfy the principle of radiation-migration balance of activity over a ~500-yr cool-down period with subterranean disposal. In terms of radiation and the technological characteristics of the spent fuel and wastes, this system does not have any special advantages for incinerating Np, Am, and Cm with fast reactors in a closed fuel cycle with U, Pu, Np, Am, and Cm recirculated and natural uranium as the makeup fuel. The accelerator-blanket system presented here can be regarded as an effective specialized setup for incinerating Np, Am, and Cm accumulated in the thermal reactors of present-day nuclear power.
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Translated from Atomnaya Énergiya, Vol. 115, No. 3, pp. 123–132, September, 2013.
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Gulevich, A.V., Zemskov, E.A., Komlev, O.G. et al. Accelerator-Blanket System as Np, Am, Cm Incinerator in Different NFC Closure Scenarios. At Energy 115, 143–155 (2014). https://doi.org/10.1007/s10512-013-9763-2
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DOI: https://doi.org/10.1007/s10512-013-9763-2