JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Bostedt, C. ED - Braun, Hans-Heinrich ED - Chrin, Jan ED - Ganter, Romain ED - Hiller, Nicole ED - Schaa, Volker RW TI - Short Free-electron Laser Pulses: The User Perspective J2 - Proc. of FLS2023, Luzern, Switzerland, 27 August-01 September 2023 CY - Luzern, Switzerland T2 - ICFA Advanced Beam Dynamics Workshop T3 - 67 LA - english AB - Free-electron laser sources can deliver x-ray pulses with unprecedented intensities. While often the performance of the x-ray laser sources and experimental needs revolve about the achievable pulse energies, the pulse length is an equally or perhaps even more important parameter. Already the first ionization measurements in atomic neon revealed that the x-ray dynamics change fundamentally when the pulse length approaches the femtosecond time scales of inner-shell decay processes [1]. Related, the pulse length was demonstrated to be an important parameter for the electronic response in diffraction experiments [2] and discussed in the broader context of damage processes in femtosecond crystallography [3] and imaging [4]. With the advent of attosecond x-ray pulses, new opportunities opened for non-linear X-ray spectroscopy [5] as well as following coherent electronic processes [6]. In my talk, I will briefly present these various short pulse applications to set the stage for the workshop discussions. PB - JACoW Publishing CP - Geneva, Switzerland ER -