The AIS-EHT1 Micro End Hall Thruster is the first official thruster line in the AIS-ADAMANT Series, and represents the newest and most advanced propulsion development yet at Applied Ion Systems, specifically designed for low-cost smaller Cubesats. The AIS-EHT1 leverages extreme scaling and modularity to provide the smallest form-factor and lowest cost Hall thruster technology on the market to date. With the unique propellant selection of Adamantane, a solid hydrocarbon diamandoid that exhibits direct sublimation at low temperatures, coupled with the AIS-SFDS Sublimation Fuel Delivery System, pressurized feed and valving are eliminated from the Hall thruster design.

The ADAMANT Series aims to tackle scaling for conventional plasma and ion propulsion systems such as gridded ion, Hall, and RF plasma down to the smallest levels of nanosats by focusing on a highly experimental fuel source to eliminate complex valving, metering, and pressurized tanks. Unlike Iodine, which is currently one of the top candidates for alternative fuels for EP, Adamantane does not exhibit serious material corrosion issues, and is not nearly as toxic to handle, while having a larger ionization cross-section (easier to ionize) as well as having nearly identical performance to Xenon, Krypton, and Iodine propellants.

The ultra-modular design of the EHT1 allows for direct mounting to the SFDS, and incorporates provisions for either the AIS-GDN1 Micro Glow Discharge Hollow Cathode Neutralizer or a dual Tungsten filament neutralizer, offering a wide variety of operating parameters at unprecedentedly low power levels. At an expected power budget of only 10W for the thruster, glow-discharge neutralizer, and fuel heater, the EHT1 is low enough power for small Cubesats to leverage. With a thruster size of only 50mm D x 10mm H, the EHT1 is a fraction of a standard Cubesat 1U, opening up Hall thruster mounting for smaller Cubesats than typically seen with conventional Hall thrusters as well. The EHT1 can also be run on conventional gas sources like Xenon, and adapted to user systems as needed. The EHT1 also lends itself for use as a low-cost test source or traditional end-hall ion source for industrial processes, run with numerous gases.


  • System Type: Micro End Hall Thruster
  • Fuel: Adamantane
  • Power Class: 10W Hall
  • Neutralizer Options: AIS-GDN1 Micro Glow Discharge Hollow Cathode or Dual Tungsten Filament
  • Thrust: TBD
  • ISP: TBD
  • Total Impulse: TBD
  • Mass (Thruster Head): TBD
  • Size (Thruster Head): 50mm diameter x 10mm height
  • Compatible Fuel Tanks: AIS-SFDS Series Sublimation Fuel Delivery System
  • Test Readiness Level (TRL): 2
  • Status: ACTIVE








Micro Propulsion Testing Chamber


  • 01/08/2021 – First conceptual CAD models of the AIS-EHT1 revealed
  • Thruster Type: Micro End Hall Thruster
  • Power Class: 10W
  • Fuel: Adamantane
  • Status: Ongoing