The general approach to Alfvén-wave current drive and induced
plasma rotation
in tokamaks with strongly elongated transverse cross-sections is considered.
Model
approximations are used to describe the circulating- and trapped-particle
dynamics
in all particle-trapping regions. This approach gives an accuracy of some
percent.
New terms, connected with the wave dissipation on trapped particles in
the second
and third trapped-particle regions for elongated tokamaks, are taken into
account.
The plasma rotation and longitudinal current, depending on the absorbed
power of
kinetic Alfvén waves, are discussed.