Measurement of FEL Undulator and Particle Tracking
Chicago, IL（1989）
Abstract
An undulator for FEL (free-electron laser) experiments was constructed, and the magnetic field was measured. The gain was estimated using the results of numerically calculated trajectories of the electrons through the actual magnetic field, taking into account the effects of field errors, field inhomogeneity, beam misalignment, finite beam emittance, and energy spread. The profiles of the electron beam at the undulator were measured; the position resolution was 0.2 mm, which was less than the permissible misalignment calculated by beam tracking calculations in the undulator
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Key words
beam handling equipment,free electron lasers,magnetic fields,particle beam diagnostics,0.2 mm,FEL,beam misalignment,electron beam,energy spread,field errors,field inhomogeneity,finite beam emittance,free-electron laser,gain,magnetic field,particle tracking,position resolution,undulator
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