FEL2026 - 42nd International Free Electron Laser Conference

Session

Electron Beam Dynamics (Invited)

WEZ

26 Aug 2026, 14:00

34. Review of coherent synchrotron radiation-immune magnetic compressors (WEZ01)

Yi Jiao (Chinese Academy of Sciences)

26/08/2026, 14:00

Session 8: Electron Beam Dynamics

Invited Oral Presentation

Magnetic bunch compressor is an indispensable component in free-electron laser facilities. Recently, breakthrough progress has been made in the physical modeling, understanding, and analytical analysis of the bunch compressor, enabling effective bunch compression while avoiding emittance growth induced by coherent synchrotron radiation effects. In this reivew, we will report latest progress in...

106. Ultra-short FEL Pulses by Laser-driven Local Bunch Compression (WEZ02)

Philipp Amstutz (Deutsches Elektronen-Synchrotron DESY)

26/08/2026, 14:25

Session 8: Electron Beam Dynamics

Invited Oral Presentation

To generate ultra-short photon pulses in a free-electron laser (FEL) accurate control of the longitudinal phase space density of the electron bunch that drives the FEL process is required. A novel laser-based technique to manipulate the longitudinal phase space density (T. Tanaka, 2019) has been explored at FLASH. An ultra-short current spike is created by compressing part of an electron bunch...