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Title: | FEM simulations of metamaterial impact on the longitudinal beam-coupling impedance of a rectangular beam pipe |
Authors: | Danisi, Alessandro Grech, Michel Masi, Alessandro Losito, Roberto Sammut, Nicholas |
Keywords: | Particle beams Large Hadron Collider (France and Switzerland) |
Issue Date: | 2015 |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Citation: | Danisi, A., Grech, M., Masi, A., Losito, R., & Sammut, N. (2015). FEM simulations of metamaterial impact on the longitudinal beam-coupling impedance of a rectangular beam pipe. 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics – Metamaterials 2015, Oxford. 49-51. |
Abstract: | When a particle beam travels through an accelerator structure like the LHC, energy is lost to the structure itself. This phenomenon is described through the beam-coupling impedance and is ideally reduced to improve beam quality and energy efficiency. In this paper, the use of metamaterials with negative permeability is investigated as a method of reducing impedance. A fast and cost-effective way of obtaining non-isotropic negative permeability is given by the construction of an array of metallic implants known as ‘split-ring resonators’ (SRRs). In this study, rectangular waveguides loaded with SRRs are studied and the longitudinal beam-coupling impedance is observed. This set-up is studied using wake-field simulations and the results are presented and discussed. This research calls for more study considering metamaterial insertions in circular waveguides and deeper feasibility studies. |
URI: | https://www.um.edu.mt/library/oar//handle/123456789/26633 |
Appears in Collections: | Scholarly Works - FacICTMN |
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File | Description | Size | Format | |
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FEM_Simulations_of_Metamaterial_Impact_on_the_Longitudinal_2015.pdf Restricted Access | 261.8 kB | Adobe PDF | View/Open Request a copy |
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