Undulators for a seeded HGHG-FEL test bench at MAX-lab
Within the European FEL Design Study a seeded HGHG-FEL test bench will be set up at MAX-lab. In the modulator the 3rd harmonic of a Ti:Sapphire laser (267nm) interacts with the electron beam. In the following dispersive section the energy modulation is converted into a spatial modulation. The radiator emits at the third harmonic (89nm). The electron beam height at MAX-lab of 400mm requires a speci
