Instabilities in Linear Accelerators

Fuente: arXiv
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Main Authors: Ferrario, Massimo, Migliorati, Mauro, Palumbo, Luigi
Format: Preprint
Published: 2025
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author Ferrario, Massimo
Migliorati, Mauro
Palumbo, Luigi
author_facet Ferrario, Massimo
Migliorati, Mauro
Palumbo, Luigi
contents As a charged particle beam moves through perfectly conducting structures with varying cross-sectional boundaries - such as RF cavities, tapers, bellows, kickers, ... - it induces both longitudinal and transverse electromagnetic fields called wakefields. In this lecture, we explore the fundamental characteristics of wakefields and illustrate key concepts using simple cases in cylindrical geometry, including a perfectly conducting pipe and the resonant modes of an RF cavity. Finally, we examine how wakefields influence beam dynamics in a LINAC, focusing on beam breakup instabilities and potential mitigation strategies.
format Preprint
id arxiv_https___arxiv_org_abs_2505_14111
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Instabilities in Linear Accelerators
Ferrario, Massimo
Migliorati, Mauro
Palumbo, Luigi
Accelerator Physics
As a charged particle beam moves through perfectly conducting structures with varying cross-sectional boundaries - such as RF cavities, tapers, bellows, kickers, ... - it induces both longitudinal and transverse electromagnetic fields called wakefields. In this lecture, we explore the fundamental characteristics of wakefields and illustrate key concepts using simple cases in cylindrical geometry, including a perfectly conducting pipe and the resonant modes of an RF cavity. Finally, we examine how wakefields influence beam dynamics in a LINAC, focusing on beam breakup instabilities and potential mitigation strategies.
title Instabilities in Linear Accelerators
topic Accelerator Physics
url https://arxiv.org/abs/2505.14111