Collisional theory of electrical resistivity in trapped electron regimes

The distribution function is determined numerically for electrons subject to magnetic trapping, electron-electron, and electron-ion collisions, and an electric field large enough to invalidate the Spitzer--Haerm (classical) approximation. The electrical resistivity is determined. It is compared with analytical theory for tokamaks, in the limit of large inverse aspect ratio epsilon, and small drift velocity V/sub d//V/sub th/. The resistivity is plotted for values of epsilon and V/sub d//V/sub th/ for which no analytic theory is available