Results are presented from calculating the neutron radiation of spent nuclear fuel (SNF) from stationary campaigns of VVER-1000 and VVER-1200 reactors due to spontaneous fission and (α, n) reactions. An analytical dependence is obtained for the average number of neutrons produced in spent nuclear fuel per α-particle on the particle’s energy. The neutron radiation of VVER-1200 spent nuclear fuel is several times higher than that of a VVER-1000 reactor, due primarily to the increased number of 244Cm isotopes produced in high-burnup fuel.
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Translated by O. Lotova
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Petrovskiy, A.M., Korbut, T.N., Rudak, E.A. et al. Calculating the Neutron Radiation in the Spent Nuclear Fuel of VVER-1200 Reactors. Bull. Russ. Acad. Sci. Phys. 84, 1295–1299 (2020). https://doi.org/10.3103/S1062873820100184