Speaker
Description
High-brightness, ultra-high peak current electron beams are of great interest for a range of applications, including high-energy colliders, strong field quantum electrodynamics, and laboratory astrophysics. However, the task of compressing electron beams to attosecond pulse durations and mega-amp peak currents while maintaining beam quality continues to pose a significant challenge. We explore, with start-to-end simulations, the feasibility of using plasma-based compression to generate ultra-short, high-peak current electron beams. By taking advantage of the large longitudinal electric fields present in a plasma wakefield, we demonstrate that large chirps can be imparted onto an electron beam, allowing it to be compressed to ultrashort durations in a magnetic chicane. We investigate the viability and limitations of this technique, and establish how the compressed beam properties depend on both accelerator and plasma parameters. Using these relationships, we find the optimal beam and plasma conditions for different applications, looking towards demonstrating plasma-based compression at the FACET-II facility at SLAC National Accelerator Laboratory.
Funding Agency
This work was supported by the U.S. Department of Energy under contract number DE-AC01-76SF00515. C. Emma and K. K. Swanson acknowledge support from the Department of Energy Early Career Research Prog
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