Demonstration of two-color x-ray free-electron laser pulses with a sextupole magnet
P. Dijkstal, A. Malyzhenkov, S. Reiche, E. Prat
Abstract
We present measurements of two-color x-ray free electron laser (FEL) pulses generated with a novel scheme utilizing a sextupole magnet. The sextupole, in combination with a standard orbit control tool, is used to suppress the radiation from the bunch core, while keeping the head and the tail of the beam lasing, each at a different photon energy. The method is simple, cost-effective and applicable at any repetition rate. We demonstrate the tunability of the scheme and discuss its advantages and practical limitations.
Topics & Concepts
OpticsLaserPhysicsRadiationBeam (structure)Cathode rayMagnetOrbit (dynamics)PhotonLaser beamsElectronFree-electron laserParticle acceleratorMaterials scienceElectromagnetLinear particle acceleratorHead (geology)Particle Accelerators and Free-Electron LasersCrystallography and Radiation PhenomenaAdvanced X-ray Imaging Techniques