@Book{1971186139, author="Udongwo, Sosoho-Abasi", title="Design and optimisation of accelerating cavity and higher-order mode couplers for the W, H and ttbar operating points of the Future Circular Lepton Collider", year="2025", address="Germany; Rostock", abstract="The Future Circular Lepton Collider (FCC-ee) needs advanced Superconducting RF cavities and Higher-Order Mode (HOM) couplers for the W, H, and ttbar energy points. This thesis focuses on the design and optimisation of accelerating cavities and HOM couplers tailored to the specific requirements of the W, H, and ttbar FCC-ee operating points. Numerical techniques, including electromagnetic simulations and sensitivity analysis, are employed to refine cavity geometries and optimise HOM damping.", school="Universit{\"a}t Rostock", note="vorgelegt von Sosoho-Abasi Udongwo", note="GutachterInnen: Ursula van Rienen (University of Rostock) ; Herbert De Gersem (University of Darmstadt) ; Rama Calaga (CERN)", note="Dissertation Universit{\"a}t Rostock 2025", doi="10.18453/rosdok_id00005526", url="https://purl.uni-rostock.de/rosdok/id00005526", url="https://doi.org/10.18453/rosdok_id00005526", language="English" }