Fusion Science and Technology / Volume 53 / Number 2T / February 2008 / Pages 59-67
Technical Paper / Kinetic Theory / dx.doi.org/10.13182/FST08-A1691
The motion of charged particles in slowly varying electromagnetic fields is analyzed. The strength of the magnetic field is such that the gyro-period and the gyro-radius of the particle motion around field lines are the shortest time and length scales of the system. The particle motion is described as the sum of a fast gyro-motion and a slow drift velocity.