The new stable ITER Baseline Scenario with zero torque

The ITER Baseline Scenario has been made passively stable at zero injected torque, obtaining robust operation at q95=3, betaN<=2.1, with and without ECH power. The new results show that a passively stable stationary state exists, and have determined a way to get there, that is non-DIII-D specific. The new recipe is based on the previous study showing that the current profile evolution in the first tauR is crucial for the stability of the disruptive 2/1 modes. The early J evolution was deterministically changed by manipulating the Ip ramp rate, Hmode transition timing, Lmode density. Although ELMs are not the trigger for the 2/1 modes, the pedestal stability is correlated with the core MHD stability, and was optimised by tuning the gas injection. Scans of the interplay between the recipe ingredients show the trade-offs and parameter space that can be achieved. Scans in the EC power injection location show that the early EC deposition location is crucial for maintaining stability, while moving the EC power from the core to the edge leads to significant confinement degradation.