Speaker
Description
Longitudinal electron beam quality is key at X-ray free-electron lasers (FELs), where electron beams with small slice energy spread and a well-preserved current profile are required to ensure optimal, stable performance. Collective effects such as microbunching instability (MBI) and intrabeam scattering (IBS) can significantly degrade the longitudinal phase-space of the electron beam during multi-stage compression and are therefore a concern across FEL facilities. In this contribution, we will present systematic characterization studies of these mechanisms at the SwissFEL soft X-ray beamline Athos. We will show longitudinal phase-space measurements using radiofrequency transverse-deflecting structures for different accelerator and compression conditions. These characterization studies represent a first step towards the optimization of multi-stage compression schemes aimed at mitigating MBI and IBS effects.
Funding Agency
SNF
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter. |
|---|