Anomalous Electron Streaming Due To Waves In Tokamak Plasmas

The motion of circulating electrons in a tokamak interacting with electrostatic (lower hybrid) waves is given by a guiding center Hamiltonian and studied by numerical integration. On surfaces with rational safety factor q, superposition of modes with degenerate values of the parallel mode number n+(m/q) is shown to result in electron streaming perpendicular to the magnetic field.