1. ENEA, Department of Fusion and Technology for Nuclear Safety and Security, I-00044 Frascati (Rome) & I- 00123 Santa Maria di Galeria, Rome, Italy
2. Institute of Nuclear Physics Polish Academy of Sciences, ul. Radzikowskiego 152, Krakow, Poland
3. CCFE, Culham Science Centre, Abingdon, Oxon, UK
4. Institute of Nuclear and Radiological Sciences, Energy, Technology and Safety, National Centre for Scientific Research Demokritos, Athens, Greece
5. Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Karlsruhe, Germany