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Nuclear fuel process A graph comparing nucleon number against binding energy Close-up of a replica of the core of the research reactor at the Institut Laue-Langevin. Nuclear fuel refers to any substance, typically fissile material, which is used by nuclear power stations or other nuclear devices to generate energy.
In nuclear engineering, fissile material is material that can undergo nuclear fission when struck by a neutron of low energy. [1] A self-sustaining thermal chain reaction can only be achieved with fissile material. The predominant neutron energy in a system may be typified by either slow neutrons (i.e., a thermal system) or fast neutrons.
Recovering uranium and plutonium from spent nuclear fuel for reuse is one of the major processes of the nuclear fuel cycle. As it has a long half-life of just over 2 million years, the alpha emitter 237 Np is one of the major isotopes of the minor actinides separated from spent nuclear fuel. [ 82 ]
Fission product yields by mass for thermal neutron fission of U-235 and Pu-239 (the two typical of current nuclear power reactors) and U-233 (used in the thorium cycle). This page discusses each of the main elements in the mixture of fission products produced by nuclear fission of the common nuclear fuels uranium and plutonium.
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UO 2 is used mainly as nuclear fuel, specifically as UO 2 or as a mixture of UO 2 and PuO 2 (plutonium dioxide) called a mixed oxide , in the form of fuel rods in nuclear reactors. The thermal conductivity of uranium dioxide is very low when compared with elemental uranium , uranium nitride , uranium carbide and zircalloy cladding material as ...
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