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25MW Mercuric Thermoelectric Reactor

Reactor with a number of features that distinguish it as safer and more realistic than typical player designs.

- Criticality constant is centred on a moderate margin.
- Moderator comes pre-graphitised (diamond will decompose into this at operating temps).
- Heavy metal coolants are less prone to boiling and overpressure than sodium; their density mitigates gamma radiation.
- Silicon nitride inner pump is less reactive than pure carbon and still has excess strength to withstand mechanical stress at high temps.
- Neutron reflector brings radiation levels down to a point where ablative Li-6 shields are far from necessary.
- Outer coolant is water, potentially forming part of a crew's life support loop.
- 2000K outlet won't sublimate carbon radiators in vacuum (~2200K limit).
- Thermocouple avoids use of extremely rare metals.