Podesta, M.Fasoli, A.Labit, B.Furno, I.Ricci, P.Poli, F. M.Diallo, A.Mueller, S. H.Theiler, C.2009-02-262009-02-262009-02-26200810.1103/PhysRevLett.101.045001https://infoscience.epfl.ch/handle/20.500.14299/35676WOS:000258427100026The mechanisms for anomalous transport across the magnetic field are investigated in a toroidal magnetized plasma. The role of plasma instabilities and macroscopic density structures (blobs) is discussed. Examples from a scenario with open magnetic field lines are shown. A transition from a main plasma region into a loss region is reproduced. In the main plasma, which includes particle and heat source locations, the transport is dominated by the fluctuation-induced particle and heat flux associated with a plasma instability. On the low-field side, the cross-field transport is ascribed to the intermittent ejection of macroscopic blobs propagating toward the outer wall. It is shown that instabilities and blobs represent fundamentally different mechanisms for cross-field transport.TORPEX grouptext::journal::journal article::research article