RITs and more, EP activities at Giessen

Transcription

1 RITs and more, EP activities at Giessen Peter J. Klar, I. Physikalisches Institut, Justus-Liebig-University of Giessen, Germany

2 Topics that we are interested in Competitiveness of the European Space Sector: Technology and Science COMPET Technologies for European non-dependence and competitiveness COMPET SRC In-Space electrical propulsion and station keeping COMPET Scientific instrumentation COMPET Technologies for European non-dependence and competitiveness COMPET Competitiveness in Earth observation mission technologies COMPET Space Portal Any cooperation related to EP: thruster design, development, diagnostics, testing, material issues electronics 2 Folie 2 NKS Raumfahrt, Dr. Adrian klein

3 Heritage 1963 Invention of the RIT-concept by Prof. Löb (RIT: Radio-frequency ion-thruster) Since 1970 commercialization of RIT- 10 and other RITs towards flight hardware by (now) Airbus DS 1992, 2001 first space flights We represent Giessen - home of the RITs.

4 Inter-institutional Research Laboratory for EP Engineering Physics, Chemistry Materials Sciences We are the largest research cluster working on EP in Germany. DLR Gö Cooperation agreement Airbus DS Cooperation agreement

5 Interinstitutional Research Lab research fields Elec. eng. based modelling Ricklefs Microscopic modelling Henrich, Heiliger Complex plasma ISS-experiments Thoma, Kretschmer EMV Thüringer planned professorship space electronics Elektronics development Probst, Frey Ion thruster technology Leiter (honorary professorship) RIT-technology Test facillities Holste, Klar, Hannemann Miniaturised EP Henning, Klar, Janek Plasmadiagnostics Schippers, Mitić, Brinkmann SC/EP interaction Hannemann, Klar Alternative propellants Klar, Schreiner Our interdisciplinary team consists of about 10 research groups of different expertise.

6 EMC / EMI Baruth, Thueringer Numerical modeling Volkmar, Ricklefs Control engineering / development of peripheral devices Simon, Wolf, Probst We know how to develop electronics for EP. Ubbo Ricklefs et al. Slide

7 Test facilities at U. Giessen We provide large EP test facilities. Jumbo ipott BigMac

8 Research highlight: Diagnostics development We perform diagnostics inside thrusters and of the plume. Methods Faraday cups Retarding potential analyzers Emittance measurements Laser spectroscopy Mass spectrometry Langmuir probes

9 Research highlight: Microscopic modelling PlasmaPIC a 3D plasma simulation tool, also for rf-plasma! plasma and neutral gas simulation combined (PIC / DSMC) Parallel computing 800 cores We simulate plasma and plume of thrusters ab initio ion density in m -3

10 Research highlight: Miniaturized colloid emitters We work on miniaturized EP concepts.

11 Research highlight: Alternative propellants We work on material issues such as alternative EP propellants. 0, RIT-10 operating with C 10 H 16 Ion current [na] 0,0015 0,0010 0,0005 0,0000 reference peak: Argon RIT-10 5sscm-Ar, 1.0 sccm-c 10 H 16 (relativ to N 2 )) Adamantane RF-power [W] ma Xenon 7.5 ma Adamantan 10 ma Xenon 10 ma Adamantan RIT Mass-to-charge ratio [amu/q] 0,1 0,2 0,3 0,4 0,5 0,6 0,7 Mass-flow [sccm]

12 Summary Research cluster of two universities Expertise in EP covering thruster design, development, diagnostics, testing, material issues, electronics We hold several ESA and DLR grants, projects with industry, e.g. Airbus DS We are interested in cooperating with project partners who need our expertise in EP. 12 Folie 12 NKS Raumfahrt, Dr. Adrian klein