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Design considerations on complementary split ring resonator-loaded waveguides for Wakefield generation

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
<mark>Journal publication date</mark>12/2016
<mark>Journal</mark>IEEE Transactions on Plasma Science
Issue number12
Volume44
Number of pages7
Pages (from-to)3281-3287
Publication StatusPublished
Early online date14/11/16
<mark>Original language</mark>English

Abstract

In this paper, we present design considerations of metamaterial (MTM)-based structures to address practical issues relating to operation in particle accelerators and at high power in general. To the best of our knowledge, this is the first time these problems have been addressed. We focus on the structure proposed in our earlier paper based on a complementary split ring resonator (CSRR)-loaded waveguide for applications in accelerator science, as a backward propagating Cherenkov detector. Through the modification of the metasurface thickness, CSRR ring width and ring curvature, a number of possible waveguides are investigated to increase structural integrity and robustness, maintain the dispersion relation, and reduce the number of hybrid modes. Accurate numerical simulations are performed to compare the different setups with the original structure. Both the longitudinal and transverse wakefield excitations are analyzed to investigate how these modifications affect beam coupling. A suitable design is successfully identified and offers a promising opportunity for the development of MTMs for high-power beam-based applications.