ELECTRIC PROPULSION SYSTEMS

THE NUCLEAR turboelectric ion propulsion system operates as follows:

1. 1.
   A nuclear reactor supplies thermal energy to a vapor boiler.
2. 2.
   The vapor drives a turbine, which operates an electric generator.
3. 3.
   The electric power is used to ionize and accelerate the propellant — a liquid alkali metal — which produces the thrust.

Electric propulsion systems can be used in a wide variety of space missions, including satellite sustainers, lunar cargo transport, and interplanetary missions.*