G. Saibene, R. Sartori, D.C. McDonald, M. Beurskens, A. Salmi, J. Lönnroth, V. Parail, P de Vries,Y. Andrew, R. Budny, A. Boboc, I. Coffey, E de la Luna, A. Loarte, P.J. Lomas, S. Gerasimov, C. Giroud, J. Hobirk, S. Hotchin, T. Johnson, C. Lescure, I. Nunes, N. Oyama, V. Riccardo, H. Urano and JET EFDA contributors EFDA–JET–CP(08)05/22 Results of the Variable Toroidal Field Ripple Experiments in JET