1. Institute for Pulsed Power and Microwave Technology, Karlsruhe Institute of Technology, Karlsruhe, Germany
2. Department of Physics, National and Kapodistrian University of Athens, Athens, Greece
3. Swiss Plasma Center, École Polytechnique fédérale de Lausanne, Lausanne, Switzerland
4. Microwave and Imaging Sub-Systems, THALES, Vélizy-Villacoublay, France
5. EC Power Supplies and Sources Fusion for Energy (F4E), Barcelona, Spain