IPAC'25 - the 16th International Particle Accelerator Conferece

Simulation-based optimization of the injection of ultrashort non-Gaussian electron beams into a storage ring

WEPM031

4 Jun 2025, 16:00

2h

Exhibiton Hall A _Magpie (TWTC)

Poster Presentation MC5.D01 Beam Optics Lattices, Correction Schemes, Transport Wednesday Poster Session

Speaker

Jens Schaefer (Karlsruhe Institute of Technology)

Description

The compact STorage ring for Accelerator Research and Technology (cSTART) project at the Karlsruhe Institute of Technology (KIT, Germany) aims to explore non-equilibrium electron beam dynamics and injection of laser-plasma accelerator (LPA) bunches. The Very Large Acceptance compact Storage Ring (VLA-cSR) is also filled by a second injector that delivers ultra-short bunches from the linear accelerator FLUTE Injection from FLUTE. Injection from FLUTE into the VLA-cSR is achieved via a complex 3D injection line featuring tilted deflections, negative dispersion, and extreme compression to femtosecond bunch lengths.
This contribution discusses the transverse fitting of strongly non-Gaussian beams into the VLA-cSR with a focus on distorted phase spaces. The effects of the optics of the injection line on the bunches and their matching to the periodic solution of the VLA-cSR, momentum acceptance (MA) and dynamic aperture (DA) are analyzed using elegant simulations. A complete 6D phase-space analysis is used to optimize the magnet optics in order to achieve ideal matching conditions in the storage ring.