1. University of Milano Bicocca,
Piazza della Scienza 3, 20126 Milano, Italy
2. Istituto di Fisica del Plasma “P. Caldirola,”
CNR, Milano, Italy
3. CCFE, Culham Science Centre,
Abingdon OX14 3DB, United Kingdom
4. INFN Milano, Via Celoria 16,
20133 Milano, Italy
5. STFC, Rutherford Appleton
Laboratory, Didcot OX11 0QX, United Kingdom
6. School of Physics, State Key Laboratory of Nuclear Physics
and Technology, Peking University, Beijing,
China
7. Department of Physics and Astronomy, Instituut
voor Kern- en Stralingsfysica, KU Leuven, Leuven,
Belgium