Higher Order Modes (HOM) Damped Cavities

The 3 GeV beam in the Diamond Light Source storage ring is currently maintained by two superconducting RF cavities and it is planned to introduce two additional cavities into the ring to improve capacity beyond the present 300 mA beam current and to introduce resilience into the RF system. The two additional cavities will be of a normal-conducting design with damped Higher Order Modes (HOMs) similar to those installed at the ALBA light source in Barcelona and the BESSY and MLS storage rings in Berlin.