Staging of High-Gradient Wakefield Accelerators

TL;DR

This paper reviews the challenges and solutions related to staging high-gradient wakefield accelerators, focusing on beam coupling difficulties due to divergence and energy spread in multi-stage setups.

Contribution

It provides a comprehensive review of the technical challenges and proposed methods for effective beam staging in high-gradient wakefield accelerators.

Findings

Identifies key challenges in beam coupling between stages.

Summarizes current proposed solutions and their technical requirements.

Highlights the importance of addressing divergence and energy spread issues.

Abstract

Accelerating particles to high energies with a high-gradient wakefield accelerator may require use of multiple stages. Coupling beams from one stage to another can be difficult due to high divergence and non-negligible energy spreads. We review the challenges, technical requirements and currently proposed methods for solving the staging problem.