Variable wiggler optimization
Abstract
An optimization calculation for wiggler systems to be used in low gain free electron lasers is reported. The variation of the laser field strength with distance due to diffraction spreading is taken into account. A description of a freeelectron laser experiment is given, and transverse effects due to finite emittance and variation of wiggler field with offaxis position are estimated. On the basis of numerical simulation, including energy spread and transverse effects, it is concluded that the experiment should produce an energy extraction efficiency of 5.3%.
 Publication:

FreeElectron Generators of Coherent Radiation
 Pub Date:
 1980
 Bibcode:
 1980fegc.proc..647B
 Keywords:

 Free Electron Lasers;
 Laser Materials;
 Magnets;
 Optimization;
 Power Efficiency;
 Electron Beams;
 Electron Distribution;
 Emittance;
 Equations Of Motion;
 Laser Outputs;
 Power Gain;
 Lasers and Masers