Nuclear Power Engineering
Fast breeder test reactor at Kalpakkam is designed for using

Uranium ore directly as a fuel
Helium as a coolant
U-238 as a fertile material
Thorium as a fertile material

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Nuclear Power Engineering
An ideal coolant for a nuclear reactor should

Be capable of attaining high temperature, only when it is pressurised
Have high density, but low heat transfer co-efficient
Be free from radiation damage and non-corrosive
Be a good absorber of neutrons

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