Thorium is and can be used as a fuel in nuclear reactors. It just happens to be not fissile, so it needs a neutron flux to create Uranium-233, which is fissile. There are pros and cons of using Thorium. For more information, please see the Related Link below.
Thorium must be converted in a breeder reactor to Uranium-233, which can be used as reactor fuel.
Not as fuel, but it can be used in breeder reactors as breeding material to make fissile Uranium-233.
Yes, thorium was used as a fertile material in nuclear reactors.
for example:uranium as nuclear fuelzirconium for nuclear fuel claddingstainless steel for different structurescadmium for neutron capture
There may be Radium, Thorium, Uranium or even Plutonium which can be used in nuclear reactors.
Uranium plutonium, thorium dioxides; also carbides can be used. During the time many other types of fuels were experimented.
Thorium will be probable in the future very important as fertile material in nuclear breeder power reactors.
Uranium, and plutonium. (And, to a lessor degree, thorium.)
AnswerProbably the nuclear fusion AnswerThere are a number of reactor designs based on using thorium, and fuel assemblies using thorium as a primary fuel can be designed and built to be used in existing reactors.
Uranium. There is some interest in using thorium in the future. Thorium cannot be used directly as fuel in a reactor as it does not fission, it requires a fast breeder reactor to convert it to Uranium-233 which does fission.
Nuclear reactors.
Uranium and/or Plutonium fuel
No substitute for nuclear power reactors especially if there is no available fossil fuel.