// PROPULSION SYSTEMS AND ENGINE TECHNOLOGY TERM
Helicon Plasma Thruster
A Helicon Plasma Thruster is a type of electric rocket engine that uses radio waves to heat a gas into a plasma and a magnetic nozzle to accelerate it, producing thrust. It's highly efficient and can operate for very long periods, making it ideal for deep space missions.
TECHNICAL DEFINITION
A Helicon Plasma Thruster is an electrodeless electric propulsion (EP) device utilizing radio frequency (RF) antennas to generate high-density plasma from a propellant gas like argon or xenon via helicon wave propagation. The resulting plasma is then accelerated by a divergent magnetic field (magnetic nozzle) to produce thrust, offering high specific impulse and power scalability without the electrode erosion that limits Hall or gridded-ion thrusters.
BACKGROUND
Spacecraft electric propulsion encompasses spacecraft propulsion systems that use electric energy to accelerate and expel propellant, generating thrust through electric or magnetic fields. Their principal advantage over chemical rockets is much higher specific impulse, meaning greater propellant efficiency, but the limited electrical power available aboard spacecraft yields much lower thrust, making electric propulsion unsuitable for launch from Earth's surface and better suited to long-duration in-space maneuvers.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- helicon thruster
- RF plasma thruster
- magnetic nozzle thruster
- electrodeless plasma thruster
- helicon source
- wave-heated plasma thruster
USAGE NOTE
Because they lack life-limiting electrodes, helicon thrusters are often researched for high-power, long-duration missions like cargo transport to Mars.
DEVELOPERS
Organizations developing technology related to Helicon Plasma Thruster.
Developer of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR), a high-power electric propulsion system that uses helicon waves to create and heat plasma.
A commercial company that develops and manufactures radio-frequency (RF) plasma thrusters for satellites. Their thruster technology is an evolution of helicon plasma sources, designed without electrodes or external magnets.
A leading US government research center for aerospace propulsion. It has active research programs investigating high-power helicon thrusters for future robotic and crewed deep-space missions.
The Space Plasma, Power and Propulsion (SP3) laboratory is a world-leading academic research group focused on the fundamental physics and development of helicon plasma sources for propulsion and other applications.
A major European aerospace manufacturer that has been involved in research programs, often in partnership with ESA, to develop and test helicon plasma thruster prototypes for future satellite platforms.
An advanced research and development company that developed the Electrodeless Lorentz Force (ELF) thruster, which used a rotating magnetic field to drive a plasma generated by a helicon source.
A French startup developing electrodeless, radio-frequency plasma thrusters for small satellites, leveraging similar physical principles to helicon thrusters for efficient and reliable propulsion.
An Italian space propulsion company and spin-off of the University of Padua that develops various electric propulsion systems, including research into RF plasma thrusters based on helicon source principles.