Bent Ehresmann, Southwest Research Institute Boulder, Boulder, CO, United States, Don Hassler, Southwest Research Inst, Boulder, CO, United States, Cary Zeitlin, Leidos Innovations Corporation, Houston, TX, United States, Daniel Matthiae, DLR, Cologne, Germany, Robert F Wimmer-Schweingruber, University of Kiel, Institute for Experimental and Applied Physics, Kiel, Germany, Jingnan Guo, USTC University of Science and Technology of China, Hefei, China, Henning Lohf, University of Kiel, Kiel, Germany and Gunther Reitz, German Aerospace Center DLR Cologne, Cologne, Germany