Berlin 2014 – scientific programme
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P: Fachverband Plasmaphysik
P 8: Diagnostics I
P 8.2: Talk
Tuesday, March 18, 2014, 11:00–11:15, SPA HS201
Electron beam based space charge measurement of intense ion beams — •Said El Moussati1, Dieter Hoffmann1, Serban Udrea1, Dmitry Varentsov2, and Karin Weyrich2 — 1TU Darmstadt, Germany — 2GSI, Darmstadt, Germany
To determine the transverse intensity distribution of intense ion beams, an electron beam diagnostic device has been developed at the HHT experimental area of the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. This method is based on the deflection of the electrons after passing through the electric field of the ion beam.
In this contribution the theoretical model how to determine the space charge of ion beams is described and some numerical calculations, by which we can define the range of this theoretical model, are presented. Furthermore a first experiment, which has been done with low energy cw ion beam (4He+, 13.5keV, ∼1mA) at the FRANZ-accelerator facility at the Goethe University Frankfurt, will be presented.