Depleted Cesium Fuel Rods appear after the durability of a Cesium Fuel Rod in a Nuclear Reactor reaches 0.
Depleted Coaxium Fuel Rods are radioactive. A HAZMAT suit is needed to handle it, or you might die of radiation poisoning.
Run a Cesium Fuel Rod through a Nuclear Reactor until the durability reaches 0.
Place it in a Thermal Centrifuge, you get 100% of the Iron Dust back, as well as some Plutonium, and Uranium-238.
Depleted Cesium Fuel Rods give back 100% of the Iron Dust used to craft them, unlike those Uranium Fuel Rods! They also generate 2x the Plutonium compared to Uranium Fuel Rods! That means you get MORE Plutonium, and EU to play with! HAYO!