1. EX/P3-47: Influence of magnetic perturbations on particle transport in magnetic fusion devices (ITPA T&C 24)
L-mode
H-mode
The particle transport increase is accompanied by changes in toroidal rotation, radial electric field and density fluctuation level in the pedestal.
Effects of RMP on core and pedestal density.
Changes in transport due to stochastic effects (TEXTOR, Tore Supra, MAST, LHD)
large 1/1 island (LHD)
a spin-up of the toroidal rotation in the ion direction  Er profile at plasma boundary modified  turbulent transport changed
very sensitive to resonant conditions:
Example from MAST
pump-out vs resonant field
Good news for ITER:
ASDEX Upgrade, MAST and LHD show that mitigated, more frequent ELMs do not enhance particle transport, i.e. do not contribute to pump-out.
ASDEX Upgrade
MAST
Important for ITER: Pump-out correlated with pedestal collisionality/density
ASDEX Upgrade
ASDEX Upgrade
M.Jakubowski, A.Kirk, W.Suttrop, K.Tanaka, E.Viezzer, E.Wolfrum, A.Dinklage, C.Hidalgo, S.Kaye, G.McKee, S.Moridijck, O.Schmitz, T.S.Pedersen