Localization of MHD and fast particles modes in ASDEX Upgrade using reflectometry

S.da Graca, G.D.Conway, M.Maraschek, K.Sassenberg, S.Guenter, P.Lauber, S.Pinches, D.Borba, L.Cupido, L. Meneses, A. A. Ferreira, F.Serra, M.E.Manso and the ASDEX Upgrade Team 1 Centro de Fusao Nuclear, Associacao EURATOM / IST, Instituto Superior Tecnico, Av. Rovisco Pais, P-1049-001 Lisboa, Portugal 2 Max-Planck-Institut fuer Plasmaphysik, Garching, Euratom Association, Germany 3 Physics Department, University College Cork, Cork, Ireland