Characterization of the pedestal in Alcator C-Mod ELMing H-modes and comparison with the EPED model

A dedicated series of ELMing H-mode discharges on Alcator C-Mod spanning a broad range of plasma parameters, including plasma current (400-1000 kA), magnetic field (3.5-8 T), and plasma shaping, are presented with experimental scalings of the plasma pedestal with bulk plasma and engineering parameters. The H-modes presented achieve pedestals with densities spanning 5 x 10(19)-2.5 x 10(20) m(-3) and temperatures of 150-1000 eV (corresponding to 5-40 kPa in the pressure pedestal), over a width of 3-5% of poloidal flux. The observed pedestal structure is compared with the most recent iteration of the EPED class of models, which uniquely predict the pedestal width and height for a set of scalar input parameters via a combination of stability calculations for peeling-ballooning MHD modes and kinetic-ballooning modes.