  Reduction of particle and heat fluxes to plasma facing components is critical
to achieve stable conditions for both the plasma and the plasma material
interface in magnetic confinement fusion experiments. A stable and reproducible
plasma state in which the heat flux is almost completely removed from the
material surfaces was discovered recently in the Wendelstein 7-X stellarator
experiment. At the same time also particle fluxes are reduced such that
material erosion can be mitigated. Sufficient neutral pressure was reached to
maintain stable particle exhaust for density control in this plasma state. This
regime could be maintained for up to 28 seconds with a minimum feedback
control.
