Tunable Micro-Wigglers For Free Electron Lasers

S. C. Chen, G. Bekefi, S. DiCecca, R. Temkin, Howard E. Brandt
1989 Microwave and Particle Beam Sources and Directed Energy Concepts  
We present the design, construction, and test results of a novel micro-wiggler structure with a periodicity of 2.4 mm for free-electron laser (FEL) applications. The experimentally demonstrated tunability of field amplitudes provides versatile means for field tapering, optical klystron configurations, improving field uniformity, and electron beam matching at the wiggler entrance.
doi:10.1117/12.951809 fatcat:z6hrhztddvbvzhl7u3nlwczwru