A method for calculating neoclassical transport coefficients with momentum conserving collision operator

A method for calculating the neoclassical transport coefficients in a nonaxisymmetric multispecies plasma is developed by employing a momentum conserving collision operator. In this method, the parallel current, and the radial particle and heat fluxes are expressed in terms of the transport coefficients which can be obtained by solving the drift kinetic equations with the pitch-angle scattering collision operator. These expressions can be easily incorporated into the existing numerical codes including the pitch-angle scattering collisions only.