A unified treatment of kinetic effects in a tokamak pedestal

We consider the effects of a finite pedestal radial electric field on ion orbits using a unified approach. We then employ these modified orbit results to retain finite E×B drift departures from flux surfaces in an improved drift kinetic equation. The procedure allows us to make clear distinction between transit averages and flux surface averages when solving this kinetic equation. The technique outlined here is intended to clarify and unify recent evaluations of the banana regime decrease and plateau regime alterations in the ion heat diffusivity, the reduction and possible reversal of the poloidal flow in the banana regime and its augmentation in the plateau regime, the increase in the bootstrap current, and the enhancement of the residual zonal flow regulation of turbulence. 1. Introduction It is standard in tokamak kinetic theory to assume the poloidal ion gyroradius is small compared to all macroscopic scale-lengths, but in the pedestal this approximation can break down. This challenge is addressed by our recently developed techniques that account for the presence of short radial scale lengths in a subsonic pedestal. Using these techniques, we have calculated both the banana [1,2] and plateau [3] regime modifications to the neoclassical ion heat flux, ion and impurity flows, the bootstrap current; and extended the residual zonal flow calculation to the pedestal case [4,5]. Here, we present a general formalism providing deeper