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Sosoho-Abasi Udongwo

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

Universität Rostock, 24.04.2025

https://doi.org/10.18453/rosdok_id00005526

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.

doctoral thesis   free access