Longitudinal Beam Dynamics and Longitudinal Matches in Energy Recovery Linacs

Perez Segurana, Gustavo and Bailey, Ian (2022) Longitudinal Beam Dynamics and Longitudinal Matches in Energy Recovery Linacs. PhD thesis, Lancaster University.

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In the design of particle accelerators, longitudinal beam dynamics plays a critical role in delivering beams with the desired properties to the interaction regions by controlling the energy distribution and current profile. Variable bunch compressors are therefore a fundamental tool to provide flexibility in any accelerator. This variability is implemented in the MAX IV bunch compressors employing variable strength dipoles capable of delivering high-quality beams with a wide range of available longitudinal dispersions. Energy recovery linacs have the potential to outperform traditional linacs and storage rings by delivering simultaneously high brilliance beams at a high repetition rate. In an ERL, a self-consistent longitudinal match is not only necessary to optimize the beam delivered to the interaction regions but also to enable the energy recovery mechanism. We present a detailed study of self-consistent longitudinal matches for collider and FEL applications. We conclude that choosing common return transport beamlines severely restricts the availability of a self-consistent match, in particular when synchrotron radiation losses are important. Finally, we apply this method to two distinct projects: ER@CEBAF as a high energy ERL FEL driver and PERLE as a high-charge ERL for nuclear physics experiments.

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Thesis (PhD)
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01 Jun 2022 16:30
Last Modified:
22 Nov 2023 01:06