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Updated: Dec 16, 2025
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Optimization, Test and Diagnostics of Miniaturized Hall Thrusters
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Ion thrusters for electric propulsion: Scientific issues developing a niche technology into a game changer
K Holste1, P Dietz1, S Scharmann1
1Institute of Experimental Physics I, Justus Liebig University, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
The Review of Scientific Instruments
|July 3, 2020
Summary
The rise of new space and commercialization significantly impacts electric propulsion (EP) systems, particularly ion thrusters. Research focuses on advanced propellants, neutralizers, and neutralizer-free concepts for future space missions.
Area of Science:
- Aerospace Engineering
- Plasma Physics
Background:
- The evolution of space exploration from traditional to commercial
- new space
- era has spurred advancements in electric propulsion (EP).
- Ion thrusters are now primary propulsion systems for numerous space missions.
Purpose of the Study:
- To analyze the impact of new space trends on electric propulsion (EP) system development.
- To provide a historical overview of space flight and EP technologies.
- To highlight key research areas and future directions for EP systems.
Main Methods:
- Historical review of space flight and EP technologies.
- Detailed discussion of radio frequency (RF) ion thruster technology.
- Analysis of research topics including propellants, neutralizers, and thruster modeling.
- Examination of space electronics, EMC, and radiation hardness.
Main Results:
- RF ion thrusters are a key technology within gridded ion engines.
- Research is advancing alternative propellants and neutralizer concepts.
- Development of neutralizer-free propulsion and improved space electronics is ongoing.
Conclusions:
- The new space paradigm necessitates innovation in EP systems.
- Future EP development requires advancements in materials, modeling, and electronics.
- Understanding EP-spacecraft interaction is crucial for mission success.
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