Highlights of Recent DIII-D Experimental Results*

Recent DIII-D experiments contributed to the ITER physics basis and to physics understanding for a Fusion Pilot Plant (FPP). Changes in the 3D structure of the divertor target heat and particle fluxes were explained by the multimodal plasma response to applied 3D RMP fields. Also a robust RMP regime with increased particle confinement was observed. H-mode edge ionization source and plasma profiles data show quantitative evidence of a 2 m/s inward particle pinch and 0.2 m²/s diffusion during density pedestal rebuild after ELMs. Micro-tearing modes (MTMs) can dominate electron heat transport in ELMy H-mode pedestals. Levels of edge ExB shear determine regulation of the pedestal to standard vs wide pedestal QH-mode. ITG dominates core heat and particle transport inside r = 0.45 (diffusion~1/Z), and grad-n TEM dominates at larger radii (diffusion~Z). Simultaneous control of n=1 and 2 RWMs was demonstrated in high-β, high-q_min plasmas. Deep learning was applied to tangential imaging of divertor CIII emission to develop real-time capable models for estimating the level of detachment. Tungsten migration data were used to validate impurity sourcing and transport in simulations of the V-shaped SAS divertor. P_L-H is also lower in the SAS than in an open divertor.