Greifswald 2009 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 7: Poster Session Extraterrestrics

EP 7.16: Poster

Dienstag, 31. März 2009, 17:30–19:00, Foyer der Zahnklinik

Development of an residual gas monitor for the Kiel solar wind and suprathermal particle laboratory — •Viktor Hrkac, Michael Stalder, Lauri Panitzsch, Robter F. Wimmer-Schweingruber, Christiane Helmke, and Stefan Kolbe — Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel

The extraterrestrial physics division of the Institut für Experimentelle und Angewandte Physik in Kiel is developing a solar wind and suprathermal particle calibration facility. It includes an advanced Electron Cyclotron Resonance Ion Source (ECRIS), which generates a well-defined highly charged ion beam dimensioned for an energy range of up to 450 keV/q. This will allow the calibration of space instruments and research on space weathering of dust particles and regoliths, and on fundamental plasma physics. Therefore an accurate knowledge of the beam parameters is required - Hence, we developed a static, non-destructive beam diagnostic, a residual gas monitor (RGM), which extracts and measures residual gas particles- that are ionized by the ion beam via Coulomb collisions. The special design of the RGM allows serval operational modes: a beam current measurement in the range from some pA to uA, the examination of the beam's potential and electric field and, in addition, the manipulation of the spacecharge compensation in the beam.