If the core reactor has a crack in it, then nuclear radiation will leak out and posion everything.
Uranium is now the most important nuclear fuel for nuclear power plants.
The most important component is the uranium fuel
Most nuclear reactors are thermal-neutron reactors. A few fast breeder reactors have been built, but not many.
The most important advantage of uranium is the release of fission energy. This phenomenon is the source of energy in nuclear reactors and nuclear weapons.
Nuclear fuel for nuclear power reactors Nuclear weapons
France (having 58 nuclear power reactors and one under construction) with around 80% of its electricity is produced by nuclear power.
Total of 104 reactors, most sites have two reactors
Most plants have two reactors but some have more
The most common coolant used in nuclear reactors is water, in either liquid or steam form. Water provides effective heat transfer properties and is readily available and cost-effective. Other coolants, such as liquid sodium or gas, are used in specialized reactors but water-cooled reactors are the most prevalent.
Uranium 235 is the most important isotope of uranium; it is a fissionable isotope used in HWR, PWR, BWR, research reactors and other types of reactors. But it is rare, only 0.72% of natural Uranium is this isotope.The more plentiful Uranium 238 isotope is only fertile not fissionable; it can only be used in fast reactors to breed Plutonium, which is fissionable. Isotopes of plutonium 239Pu and 241Pu are highly fissionable and importants for nuclear fuels.
Most nuclear power plants currently operating in the US are classified as pressurized water reactors (PWRs). These reactors use water as both a coolant and moderator to generate electricity through nuclear fission. PWRs are the most common type of nuclear reactor in use worldwide.
Uranium-235 and plutonium-239 are the most common actinide fuels used in nuclear reactors as they are fissile and undergo nuclear fission reactions efficiently.