1. EURATOM/ENEA Fusion Association, Politecnico di Torino, Torino, Italy
2. EURATOM/ENEA Fusion Association, ENEA CRE Frascati, Rome, Italy
3. University of Wisconsin-Madison, Madison, WI, U.S.A.
4. Kurchatov Institute, Moscow, Russia
5. SCK•CEN, Mol, Belgium
6. EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, U.K.