GENERATION OF POLOIDAL ELECTRIC-FIELD BY ANISOTROPIC HEATING

A poloidally varying electrostatic potential due to a plasma heating a nisotropic in velocity space is investigated in the collisionless regi me for an axisymmetric plasma. Based on a linearized drift kinetic equ ation in a presence of external energy-source term, an analytic expres sion for this electrostatic potential is derived by means of an eigenf unction technique and a variational method. By using this analytic exp ression, the enhancement of the neoclassical transport coefficients by the anisotropic heating is discussed.