Abstract
A computational and analytical study of current density and magnetic field distribution in the reversed field pinch is presented. By using the kinetic model of Jacobson and Moses, the electron momentum transport across the magnetic field is formulated in terms of the perturbed distribution function with an analogy of enhanced cross-field heat transport in a stochastic magnetic field in tokamak. The current density obtained from the distribution function is used to give the magnetic field configuration through the Ampere's law. The results showed, in the cylindrical geometry, that the momentum transport due to the stochastic magnetic field could make the current distribution spatially uniform and thus the self-reversal of the toroidal magnetic field occured. A further suggestion was made on an effect of the trapped electrons in local mirror of toroidal devices.
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