Electron drift in a linear magnetic wiggler with an axial guide field
Abstract
Electron trajectories through a linear magnetic wiggler in an axial guide field are calculated numerically. Off-axis electrons are shown to drift in a direction perpendicular to the wiggler field because of the wiggler gradient. Effects of self fields and initial conditions are analyzed, and the results are compared to those obtained with a helical wiggler. An empirical analytic expression for the linear wiggler drift is presented, and means of stabilizing the drift are discussed.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1982
- Bibcode:
- 1982STIN...8233700P
- Keywords:
-
- Electron Trajectories;
- Free Electron Lasers;
- Relativistic Electron Beams;
- Wiggler Magnets;
- Drift Rate;
- Helical Windings;
- Linear Polarization;
- Magnetic Fields;
- Lasers and Masers