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Electrons Trajectories in Electromagnetically Pumped Free Electron Laser with a Constant Reverse Guide Magnetic Field

Authors: 
Ahmad Omar
Journal Name: 
Tr. J. Phys
Volume: 
35
Issue: 
2011
Pages From: 
145
To: 
152
Date: 
Tuesday, March 1, 2011
Keywords: 
Free-Electron Laser (FEL), electromagnetic wiggler, wiggler frequency, reverse guide magnetic field
Abstract: 
An exact solution to the quartic equation in the wiggler frequency ωw , which represents the dispersion relation for this system, is obtained. The effects of the frequency of the wiggler ωw on the electron’s velocities (v|| and vw) are investigated. The regions of interest for the allowed wiggler frequency ωw for both group I and group II electron trajectories are discussed.