1. Huazhong University of Science and Technology,State Key Laboratory of Advanced Electromagnetic Technology, International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, School of Electrical and Electronic Engineering,Wuhan,China,430074
2. Route de Vinon-sur-Verdon CS 90 046,ITER Organization,St. Paul Lez Durance Cedex,France,13067
3. Princeton Plasma Physics Laboratory,Princeton,New Jersey,United States of America,08540
4. Institute of Plasma Physics,HFIPS Chinese Academy of Science,Hefei,China,230031
5. University of Strathclyde,Department of Physics SUPA,Glasgow,United Kingdom,G4 ONG