TNPSC Thervupettagam

Thorium-based Small Modular Reactor

May 3 , 2025 12 hrs 0 min 38 0
  • Maharashtra signed a MoU with Russia's state-owned company ROSATOM for the development of a Small Modular Reactor (SMR) based on thorium fuel.
  • This is perhaps for the first time a state government will be venturing into the arena of nuclear energy.
  • The Fast Breeder Reactor (FBR) will initially use the Uranium-Plutonium Mixed Oxide (MOX) fuel.
  • The Uranium-238 "blanket" surrounding the fuel core will undergo the nuclear transmutation to produce more fuel, thus earning the name 'Breeder'.
  • The use of Thorium-232, which in itself is not a fissile material, as a blanket is also envisaged in this stage.
  • By transmutation, thorium will create fissile Uranium-233 which will be used as fuel in the third stage.

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