Beam dynamics, performance, and tolerances for pulsed crab cavities at the Advanced Photon Source for short x-ray pulse generation

The Advanced Photon Source (APS) has decided to implement a system using pulsed crab cavities to produce short X-ray pulses using Zholents´ scheme. This paper describes beam dynamics issues related to implementation of this scheme with one-sector separation between the cavities. Modeling of the cavity is used to demonstrate that the deflection will be independent of transverse position in the cavity but that there is a position offset for undeflected particles. Configuration and parameter choices to optimize performance are discussed. Finally, tolerances are discussed and determined based on tracking simulations.