2021
DOI: 10.48550/arxiv.2111.04319
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High efficiency uniform positron beam loading in a hollow channel plasma wakefield accelerator

Shiyu Zhou,
Jianfei Hua,
Qianqian Su
et al.

Abstract: We propose a novel positron beam loading regime in a hollow plasma channel that can efficiently accelerate e + beam with high gradient and narrow energy spread. In this regime, the e + beam coincides with the drive e − beam in time and space and their net current distribution determines the plasma wakefields. By precisely shaping the beam current profile and loading phase according to explicit expressions, three-dimensional Particle-in-Cell (PIC) simulations show that the acceleration for e + beam of ∼nC charg… Show more

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