Shrinivasrao R. Kulkarni¹, Robert F Wimmer-Schweingruber², Ali Ravanbakhsh², Cesar Martin-Garcia^2,3, Christoph Terasa¹, Robert Elftmann¹, Stephan I Boettcher¹, Lars Seimetz¹, Stefan Kolbe², Mahesh Yedla¹, Bjoern Schuster¹ and Violetta Knierim², (1)University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, (2)IEAP, University of Kiel, Kiel, Germany, (3)now at Institute of Planetary Research, DLR, Berlin, Germany