1. FOM-Institute for Plasma Physics Rijnhuizen, Assocation EURATOM-FOM, Partner in the Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands, Tel. +31 30 60 96 960, Fax +31 30 60 31 204
2. Also Eindhoven University of Technology, Dept. of Applied Physics, PO Box 513, 5600 MB Eindhoven, NL