Higher-Order-Mode Damping of L-Band Superconducting Cavity Using A Radial-Line HOM Damper

K. Umemori, M. Izawa, K. Saito, S. Sakanaka
Proceedings of the 2005 Particle Accelerator Conference  
For the energy recovery linacs, strong damping of higher-order-modes (HOMs) is indispensable to avoid beam breakup instabilities. We studied a new HOM damping scheme using a radial-line HOM damper with a choke structure. Both models of the radial-line damper and the TESLA-type 9-cell cavity were prepared and the HOM characteristics of this scheme were experimentally investigated. Measurement results showed a promising performance of the radial-line HOM damper.
doi:10.1109/pac.2005.1591554 fatcat:e7szf4h6vbd6xhyphz3bxdwfva