Speaker
Description
The FCC-ee injector complex requires high-charge, high-brightness, low-energy-spread electron and positron beams, posing stringent demands on beam dynamics modeling and accelerator design tools. RF-Track is a parallelized particle tracking code that has been developed at CERN and applied to support the design of the FCC-ee injector linacs and positron source. In this talk, I will present recent advances in RF-Track that enable realistic start-to-end simulations of the linacs, including the implementation of beam loading with trains of arbitrary bunch charge profiles and a particle-based model for intra-beam scattering (IBS). These new features have been critical for evaluating beam quality preservation under intense collective effects, and for optimizing the positron production and capture system. I will showcase simulation results and design studies carried out for the FCC-ee injector, highlighting how RF-Track has contributed to shaping the accelerator layout and establishing the RF parameters that meet the collider’s challenging requirements.