1. EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom 1Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6169, USA 2CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom 3IRFM, CEA Cadarache, 13108 St-Paul-Lez-Durance Cedex, France
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6169, USA
3. EUROfusion Consortium, JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom
4. CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom
5. IRFM, CEA Cadarache, 13108 St-Paul-Lez-Durance Cedex, France