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

Key Points

• The research aims to design and optimize accelerating cavities and HOM couplers for the Future Circular Lepton Collider's specific energy points.
• Used numerical techniques including electromagnetic simulations.
• Conducted sensitivity analysis to refine cavity geometries.
• Focused on optimizing HOM damping for the W, H, and ttbar operating points.
• Achieved optimized cavity designs, enhancing performance at W, H, and ttbar energy points.
• Demonstrated effective HOM damping through refined coupler designs.
• Validated design improvements via simulation outcomes showing higher efficiency.