The workshop will give as much time as possible to discussions. Many talks will be plenary, in order to allow different groups in the accelerators community to share their work and ideas, and possibly find synergy of intents. Parallel sessions will be dedicated to working groups, and the groups will eventually report in plenary session.The workshop will focus on the following topics:

  • Charged particle dynamics in storage ring light sources and linac-driven free electron lasers
  • Design concepts and projects of synchrotron light sources, free electron lasers and Compton/Thomson light sources.
  • Complementarity of synchrotron light sources and free electron lasers: timing, energy and spectral operational modes.


Sessions Science will include discussions on scientific ideas, needs and issues related to:

  • Time-resolved experiments at storage rings
  • Time-resolved experiments at FELs
  • Narrow vs. large bandwidth FELs
  • Single shot vs. high rep. rate experiments

Sessions Storage Rings will include contributions on:

  • Short photon pulses in storage rings and time-resolved operation
  • Schemes of coherent harmonic generation
  • Spectral bandwidth control at diffraction limited light sources (energy spread, transverse gradient undulators, dipole magnet radiation, etc.)
  • Major limitations to the spectral brilliance at diffraction limited storage rings

Sessions FELs will include contributions on:

  • Femto- and atto-second pulses
  • TW-peak power (high efficiency lasing, RAFEL, etc.)
  • Bandwidth control (seeded, self-seeded, HB-SASE, XFELO, microbunching instability, electron energy chirp, seed laser frequency chirp, etc.).

Some Question Marks for an Inspiring Program

  1. Are both time-resolved and coherence-driven experiments conceivable at a diffraction limited storage ring?
  2. What kind of insertion devices will be adopted in diffraction limited storage rings, and which concerns and advances will pop up compared to nowadays operation?
  3. How present bend magnet-based beamlines will be managed at diffraction limited storage rings?
  4. What are the major limitations to the spectral brilliance at diffraction limited storage rings?
  5. How can full coherence be reliably produced in FELs up to multi-keV range photon energy?
  6. Is microbunching instability still an issue for FELs, how is it handled, and what is our present understanding of that process?
  7. What are the most recent advances in, and ideas for, producing short photon pulses and/or high peak power at VUV and x-ray FELs?