Abstract
Air-Breathing Electric Thrusters (ABET) diagnostics is addressed, with on-ground prototypes in mind. It is based on detailed volume averaged Global Models and focuses on emission spectroscopy. Notably, the obtained optical emission spectroscopy diagnostics tools give important information about the thruster propellant constitution and also the ionization degree of each constituent. This allows for trade-off between various prototypes on the basis of their characterization and optimization.
Highlights
Diagnostics constitutes an important tool for electric thruster technology development and, further, for thruster in-flight monitoring
The important Optical Emission Spectroscopy (OES) diagnostics and the Global Model (GM) which are necessary as a theoretical support of OES [3] are addressed separately in [11]
OES diagnostics helping in prototypes trade-off has been made, facilitating Air-Breathing Electric Thrusters (ABET) selection
Summary
Diagnostics constitutes an important tool for electric thruster technology development and, further, for thruster in-flight monitoring. We are looking forward to apply the non-intrusive OES supported by 4CGM in diagnosing mini-Hall and Helicon type ABET devices, by using experimental facilities available at the ESA Propulsion Laboratory (EPL) [6] of the European Space Agency (ESA), ESTEC, as soon as the necessary devices will be installed and in compliance with the availability schedule This model could be used to characterize AtR collectors and propellant reservoirs. Main emission lines of ionized species lie in the UV region, while low lying transitory levels give the most intense resonant lines in the VUV region
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