In particle accelerator components, parasitic resonances must be reduced because they heat up the equipment and cause beam instabilities. In this paper, a method for designing and characterizing Higher Order Mode (HOM) couplers for reducing such resonances in a broad bandwidth is proposed. A case study is considered for a specific component, called QuattroTank, showing geometrical discontinuities and thus causing significant electro-magnetic resonances. Results of numerical simulation and experimental emulation prove the capability of the proposed method to reduce the peaks and the $Q-factor of the resonances.
@article{arxiv.1811.08154,
title = {Reducing parasitic resonances in particle accelerators components by broadband Higher Order Mode couplers},
author = {Antonio Gilardi and Pasquale Arpaia and Luca De Vito and Olav E. Berrig},
journal= {arXiv preprint arXiv:1811.08154},
year = {2018}
}