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P: Fachverband Plasmaphysik

P 15: Poster: Diagnostik

P 15.14: Poster

Wednesday, April 1, 2009, 17:30–19:30, Foyer des IfP

Direct beam-profile-imaging at the Kiel suprathermal ion calibration facility using a position-sensitive Faraday-Cup-Array — •Lauri Panitzsch, Michael Stalder, Robert F. Wimmer-Schweingruber, Onno Kortmann, Stefan Böttcher, and Oliver Rother — IEAP, Christian-Albrechts-Universitaet zu Kiel, Germany

The department of extraterrestrial physics of the University of Kiel is establishing a solar wind laboratory which will be used mainly for three purposes: calibration of space instruments interacting with the solar wind, research on space weathering of dust particles, and for fundamental plasma physics. The laboratory will be able to generate a well defined highly-charged ion flux, similar to the solar wind, at energies from 1- 450keV/q. To generate this flux, ions of different charge states are produced in a 9-14GHz Electron-Cyclotron-Resonance Ion Source (ECRIS). Both, calibration and dust particle bombardment, need accurate values for the main beam parameters such as current, position and profile. While the current can be measured by a single Faraday Cup (FC), position and profile of the ion beam can be directly imaged with a newly developed Faraday Cup Array (FCA) moving through the beam. This array allows high resolution, accuracy and durability even for the expected current range (pA to mA) and a beam power up to 40W. Here we report on the FCA as a beam-diagnostic tool well suited especially for beam-profile-imaging.