Fusion Science and Technology / Volume 45 / Number 2T / March 2004 / Pages 47-54
Technical Paper / Plasma and Fusion Energy Physics - Basic Theory / dx.doi.org/10.13182/FST04-A468
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.