It can be used as a blanket fuel to produce U-233 fissile fuel.
Thorium was not used in nuclear weapons.
Thorium is not used in nuclear medicine.
Yes, thorium was used as a fertile material in nuclear reactors.
Today thorium is used as nuclear fuel only in India; very probable the future will be different.
Uranium and Thorium
Thorium will be probable in the future very important as fertile material in nuclear breeder power reactors.
There may be Radium, Thorium, Uranium or even Plutonium which can be used in nuclear reactors.
1. Thorium is more abundant than uranium. 2. Thorium is not so expensive as uranium. 3. Countries without uranium but with thorium reserves have the possibility to build nuclear reactors. 4. Natural thorium has only one isotope; enrichment is not necessary. 5. Thorium can't be used in nuclear weapons. 6. The specific activity of thorium is very low. 7. The physical properties of ThO2 are superior to the properties of UO2. 8. The nuclear properties of thorium are suitable for a nuclear fertile material.
Uranium or Thorium.
Uranium, plutonium, or thorium.
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.
Th, element 90, spelled thorium, is an actinide and has been used as a nuclear fuel (see Wikipedia.)