Thorium Fuel

Thorium fuel is the cheapest fuel to make, even cheaper than Uranium Fuel, as it can be bred directly from Thorium-232. It runs cooler than the other fuels, this means it produces less energy but is safer to run overall. After its fuel cycle and recycling, it makes more fissile material than it consumed.

Production
It is made either by mixing 2 Thorium (Th-232) and 1 U-233 billet to make 3 billets or 4 Thorium and 2 U-233 nuggets to make 1 billet.

It can also be made by breeding Thorium-232 rods in a ZIRNOX GCR.

Statistics
Thorium fuel rods produce 10 heat and have a 100,000 tick lifespan.

Small Reactor
Heat statistics for the small reactor, being filled with 12 (complete fill) of each rod type and temperature counted in degrees Celcius (no external modifiers used):

Large Reactor
Heat statistics for the large reactor, checking every operating level and temperature checked in degrees Celsius:

RBMK
Thorium fuel (Thorium with a MEU driver) is a very low-strength fuel for the RBMK. It is even weaker than NU Fuel. It is mainly used as a buffer for very strong fuels since its outgoing flux is capped and it makes slightly more fissile material than was originally used to make it.

It has a flux function of: $$(1 - e^{-x} / 25) * 12 $$

The function is considered safe and is of the "Euler" type.

A Xenon-135 generation function of: $$x * 0.5$$

And a Xenon burn function of: $$x^2 * 50 $$

Generic Reactor and ZIRNOX GCR
Depleted thorium emits 30 RAD/s per "piece" when hot and 20 RAD/s when cool.

Depleted thorium, when recycled, gives 1 U238 nugget, 1 Thorium nugget, 3 U233 nuggets, and 1 tiny pile of nuclear waste.

RBMK
(To calculate with Xenon-135 poison, remove 1% from Thorium fuel and add 1% to Xe135)


 * Brand New
 * 90% Thorium Fuel
 * 10% Long-Lived Nuclear Waste (Thorium-232)
 * Barely Depleted
 * 70% Thorium Fuel
 * 30% Long-Lived Nuclear Waste
 * Moderately Depleted
 * 50% Thorium Fuel
 * 50% Long-Lived Nuclear Waste
 * Highly Depleted
 * 30% Thorium Fuel
 * 70% Long-Lived Nuclear Waste
 * Fully Depleted
 * 10% Thorium fuel
 * 90% Long-Lived Nuclear Waste

Uses
Thorium fuel can be used in both the small and large nuclear reactors.

Trivia

 * Thorium fuel is not used IRL in many places despite it being theoretically possible.
 * This is due to many technical problems with it currently faced.
 * After reprocessing, thorium fuel produces more fissile material (U-233) than it consumes, a real life trait of Thorium based fuel.