1. Institut für Materialforschung I, Association EURATOM-FZK, Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany
2. Plasma Heating Technology Group, Japan Atomic Energy Agency (JAEA), 801-1 Mukoyama, Naka, Ibaraki 311-0193, Japan
3. CRPP-EPFL, Association EURATOM – Conféderation Suisse, CH-1015 Lausanne, Switzerland