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Physical Sciences

Lawrence Berkeley National Laboratory

Chirp Mitigation of Plasma-Accelerated Beams by a Modulated Plasma Density

Published Web Location

https://doi.org/10.1103/physrevlett.118.214801
Abstract

Plasma-based accelerators offer the possibility to drive future compact light sources and high-energy physics applications. Achieving good beam quality, especially a small beam energy spread, is still one of the major challenges. Here, we propose to use a periodically modulated plasma density to shape the longitudinal fields acting on an electron bunch in the linear wakefield regime. With simulations, we demonstrate an on-average flat accelerating field that maintains a small beam energy spread.

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