Instabilities in Linear Accelerators
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918026569318400 |
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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 |