Speaker
Description
High-brightness, ultrashort electron beams from photocathode DC guns are increasingly demanded for applications such as UED/UEM, THz acceleration, and dielectric laser acceleration (DLA). We present the concept and design of a static magnetic scheme for 200 keV electron beams from a photocathode DC gun that control the bunch duration and laser-electron synchronization simultaneously to sub-40 fs rms. Unlike RF-based compression, the all-static approach effectively eliminates timing jitter without using time-varying fields. This scheme provides a robust and high-performance solution for ultrafast electron beam generation, achieving femtosecond-level synchronization for pump-probe experiments and related ultrafast applications. Simulation results based on the DC gun beamline platform at FORTRESS and progress on experiments preparation will be reported.
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