Hannover 2020 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 16: Poster Session 3

P 16.22: Poster

Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof

Measurements with a Diagnostic Package for Electric Propulsion Satellite Platforms — •Tony Krüger, Thomas Trottenberg, Alexander Spethmann, and Holger Kersten — Institute of Experimental and Applied Physics, University of Kiel, Germany

To measure the plasma environment of electrically propelled satellites, a novel electric propulsion diagnostic package (EPDP) is currently being developed. Spacecrafts often carry sensitive instruments and other subsystems which might be disturbed or degraded due to the unintended backflow from applied plasma thrusters [1]. With their exhaust plume and its resultant surface-modification effects, these thrusters significantly influence the spacecraft's environment. To gain control of these effects, the EPDP contains a retarding potential analyzer, a planar Langmuir probe, and an erosion sensor to measure relevant plasma parameters [2]. In the course of the Heinrich Hertz (H2Sat) telecommunication satellite financed by the DLR, the EPDP system is currently being developed for its maiden flight on H2Sat, which is scheduled for launch in 2022. This contribution shows up-to-date measurements with the EPDP performed in our ion beam chamber. [1] Trottenberg et al., Development of a Flight Electric Propulsion Diagnostic Package (EPDP) for EP Satellite Platforms, IEPC-2019-345, 36th International Electric Propulsion Conference University of Vienna, Austria, September 15-20, 2019, [2] Wang et al., Deep Space One Investigations of Ion Propulsion Plasma Environment, J. Spacecr. Rockets, vol. 37, pp. 545-555, 2000