On TiN-particle fuel based helium-cooled transmutation systems |
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Authors: | Daniel Westlé n,Janne Wallenius |
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Affiliation: | Department of Nuclear and Reactor Physics, Royal Institute of Technology, SE-106 91 Stockholm, Sweden |
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Abstract: | We have designed a sub-critical helium-cooled core with TiN-coated particle fuel, dedicated to the transmutation of minor actinides. The excellent neutronic properties of helium allows for a low plutonium fraction in the fuel, which yields a low reactivity swing, Δk = 2600 pcm, for a burnup of 31.2%. Further the neutron spectrum is hard, limiting the buildup of Cm and Cf. The high burnup combined with a minor actinide burning rate of 355 kg/GWth year makes the present design an attractive transmutation system. |
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