MOX Fuel

Mixed oxide fuel, commonly referred to as MOX fuel, is nuclear fuel that contains more than one oxide of fissile material, usually consisting of plutonium blended with natural uranium, reprocessed uranium, or depleted uranium. MOX fuel is an alternative to the low-enriched uranium (LEU) fuel used in the light water reactors that predominate nuclear power generation. For example, a mixture of 7% plutonium and 93% natural uranium reacts similarly, although not identically, to LEU fuel. MOX usually consists of two phases, UO2 and PuO2, and/or a single phase solid solution (U,Pu)O2. The content of PuO2 may vary from 1.5 wt.% to 25-30 wt.% depending on the type of nuclear reactor. Although MOX fuel can be used in thermal reactors to provide energy, efficient burning of plutonium in MOX can only be achieved in fast reactors.

One attraction of MOX fuel is that it is a way of utilizing surplus weapons-grade plutonium, an alternative to storage of surplus plutonium, which would need to be secured against the risk of theft for use in nuclear weapons. On the other hand, some studies warned that normalising the global commercial use of MOX fuel and the associated expansion of nuclear reprocessing will increase, rather than reduce, the risk of nuclear proliferation, by encouraging increased separation of plutonium from spent fuel in the civil nuclear fuel cycle.

Read more about MOX FuelOverview, Current Applications, Fabrication, Americium Content, Curium Content, Thorium MOX

Other articles related to "mox fuel, mox, fuel, fuels":

Nuclear Energy In Belgium - History
... SCKā€¢CEN played a large role in developing MOX fuel ... with the goal of industrially producing MOX fuel ... In 1963 BR3 was loaded with MOX fuel and was the first reactor in the world to generate electricity this way ...
Sellafield - Other Controversies - MOX Fuel Quality Data Falsification
... The MOX Demonstration Facility was a small-scale plant to produce commercial quality MOX fuel for light water reactors ... commissioned between 1992 and 1994, and until 1999 produced fuel for use in Switzerland, Germany and Japan ... The NII stated that the safety performance of the fuel was not affected as there was also a primary automated check on the fuel ...
Plutonium - Applications - Mixed Oxide Fuel
... Spent nuclear fuel from normal light water reactors contains plutonium, but it is a mixture of plutonium-242, 240, 239 and 238 ... is not sufficiently enriched for efficient nuclear weapons, but can be used once as MOX fuel ... to consume this plutonium and other transuranic fuels and reduce the radiotoxicity of the waste is the usual reason nuclear engineers give to make fast neutron reactors ...
MOX Fuel - Thorium MOX
... See also Thorium fuel cycle MOX fuel containing thorium and plutonium oxides has also been studied ... According to a Norwegian study, "the coolant void reactivity of the thorium-plutonium fuel is negative for plutonium contents up to 21%, whereas the transition lies at 16% for MOX fuel." The authors ...

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