Simulation Study of Injection Performance for the Advanced Photon Source Upgrade

A vertical on-axis injection scheme has been proposed for the hybrid seven-bend-achromat (H7BA) [1] Advanced Photon Source upgrade (APSU) lattice. In order to evaluate the injection performance, various errors, such as injection beam jitter, optical mismatch and errors, and injection element errors have been investigated and their significance has been discovered. Injection efficiency is then simulated under different error levels. Based on these simulation results, specifications and an error-budget for individual systems have been defined.