Emission current control system for multiple hollow cathode devi
Field-emission ion source and ion thruster apparatus comprising
Hall effect electric propulsion system
Hall-effect plasma thruster
Hall-type electric propulsion
High-frequency ion source
Hybrid chemical/electromagnetic propulsion system
Hybrid electrothermal/electromagnetic arcjet thruster and thrust
Hybrid plume plasma rocket
Iodine electric propulsion thrusters
Ion beam and ion jet stream motor
Ion beam profile control apparatus and method
Ion beam thrust method
Ion beam thruster shield
Ion engine grid arcing protection circuit
Ion impulse engine
Ion prime mover
Ion thruster for interplanetary space mission
Ion thruster grid clear
Ion thruster having a hollow cathode assembly with an...