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[[File:Nuclear fuel pellets.jpeg|alt=Nuclear fuel pellets|thumb|Nuclear fuel pellets]]
[[File:SchémaDechetsNucleaires en.svg|thumb|Nuclear fuel process]]
[[File:Binding energy curve - common isotopes.svg|right|thumb|upright=1.5|A graph comparing [[nucleon number]] against [[binding energy]]]]
[[File:ILL core 8358 extract.jpg|thumb|Close-up of a replica of the core of the [[research reactor]] at the [[Institut Laue-Langevin]]|thumb]]

Nuclear fuel is a material used in nuclear power stations to produce heat through nuclear fission. This heat is then used to generate electricity through steam turbines. The most common nuclear fuels are isotopes of uranium and plutonium, with [[Uranium-235]] and [[Plutonium-239]] being the primary fissile materials used in nuclear reactors.

=== Types of Nuclear Fuel ===
* [[Uranium]]: The most widely used nuclear fuel, found naturally. Enrichment processes increase the concentration of U-235 to make it suitable for nuclear fission.
* [[Plutonium]]: Created as a by-product in reactors from uranium-238, it can be recycled as a fuel for fast-breeder reactors or mixed oxide (MOX) fuel.
* [[Mixed Oxide (MOX) Fuel]]: A blend of plutonium and natural or depleted uranium which recycles plutonium from spent nuclear fuel.
* [[Thorium]]: Considered as an alternative to uranium due to its abundance and potential for use in thorium-based reactors, which produce less long-lived radioactive waste.

=== Nuclear Fuel Cycle ===
The nuclear fuel cycle describes the processes involved in the production, use, and disposal of nuclear fuel. This includes:
* [[Uranium Mining]]: The extraction of uranium from the earth.
* [[Fuel Fabrication]]: The process of manufacturing nuclear fuel to be used in reactors.
* [[Uranium Enrichment]]: Increasing the concentration of U-235 in uranium for use in light water reactors.
* [[Spent Fuel Reprocessing]]: The chemical process used to recover fissionable material from spent nuclear fuel.
* [[Waste Management]]: The safe storage and disposal of radioactive waste produced from nuclear power generation.

=== Advantages of Nuclear Fuel ===
* High Energy Density: Nuclear fuel contains millions of times the energy equivalent of oil or gas.
* Low Greenhouse Gas Emissions: Nuclear power plants emit negligible amounts of carbon dioxide during operation.
* Reliability: Nuclear power plants can operate continuously for long periods before needing to refuel, providing a stable source of electricity.

=== Challenges and Concerns ===
* [[Nuclear Waste]]: The management and disposal of highly radioactive waste remain a significant challenge.
* [[Nuclear Proliferation]]: The potential for the diversion of nuclear material for weapons poses a security risk.
* Safety Concerns: Accidents such as those at [[Chernobyl]] and [[Fukushima]] have raised concerns about nuclear power plant safety.

== Glossary ==
* [[Fissile Material]]: A substance capable of sustaining a nuclear fission chain reaction.
* [[Nuclear Fission]]: The process of splitting a heavy atomic nucleus into two smaller nuclei with the release of energy.
* [[Radioactive Waste]]: Waste type containing radioactive chemical elements that does not have a practical purpose.
* [[Uranium-235]]: An isotope of uranium making up about 0.7% of natural uranium. It is the only naturally occurring isotope that is fissile.
* [[Fast-Breeder Reactor]]: A type of nuclear reactor that creates more fissile material than it consumes.

== Also see ==
* [[Glossary of nuclear energy]]
{{Nuclear power by country}}
{{Nuclear technology}}
{{Electricity generation}}
{{Natural resources}}
{{stb}}
[[Category:Nuclear power| ]]
[[Category:Energy conversion]]
[[Category:Nuclear power stations| ]]
[[Category:Nuclear technology|Power]]
[[Category:Power station technology]]
[[Category:Articles containing video clips]]
[[Category:Global issues]]

Nuclear fuel - Revision history

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