1. Centro Ricerche Fusione (CRF), University of Padua, Padua, Italy
2. Department of Physics “G. Occhialini”, University of Milano-Bicocca, Milan, Italy
3. ENEA, INFN, University of Padua, Acciaierie Venete SpA), Consorzio RFX (CNR, Padua, Italy
4. Institute for Plasma Science and Technology, National Research Council, Milan, Italy
5. Department of Industrial Engineering (DII), University of Padua, Padua, Italy