Canonical Hamiltonian theory of the guiding-center motion in an axisymmetric torus, with the different time scales well separated

A new set of exact canonical variables of guiding-center motion in an axisymmetric torus has been systematically identified and an action-angle variable formalism has been established. In this new canonical Hamiltonian theory, the time scale of poloidal motion and the time scale of toroidal drift (precession) of the guiding-centers are well separated. (c) 2006 American Institute of Physics.