Anomalous electron streaming due to waves in tokamak plasmas

Combined RF current drive and bootstrap current in tokamaks

“…In previous works [1] we described the expansion of (1) in the small parameter δ = τ t,b /τ D , where τ t,b is the electron's transit or bounce time, and τ D is a typical time for radial drift of the electron. The result, in analogy with standard neoclassical theory [3,4], is f = f 0 + δf 1 = f 0 +f + g,where…”

“…By calculating radio frequency current drive (RFCD) and the bootstrap current in a consistent kinetic manner, we find synergistic effects in the total noninductive current density in tokamaks [1]. We include quasilinear diffusion in the Drift Kinetic Equation (DKE) in order to generalize neoclassical theory to highly non-Maxwellian electron distributions due to RFCD.…”