Charge and Objectives

This series of workshops is intended to refine the science drivers for NGLS and to translate the science needs into performance requirements for the facility.  This includes fundamental FEL parameters (e.g. ph/pulse, rep rate, tuning range, pulse duration etc.) as well as requirements for beamlines (photon delivery optics, detectors, lasers etc.) and endstations.  Information from these workshops will be essential input to the development of a preliminary design for the facility.

Workshop speakers are asked to please keep the following guidelines in mind:
  • Think broadly and try to outline important future science areas in your field - even if somewhat speculative.  The talks are not intended to be a presentation of only your own research.
  • The emphasis should be on future science that requires the unique capabilities of NGLS, and experiments that are beyond what can be done with present sources/facilities.
  • Try to make a clear justification or connection between the science and the source requirements/capabilities that will be required.  This should be a reasonable fraction of the talk (~20%) rather than just a single wish-list viewgraph at the end.
  • The invited talks should set the stage for the breakout discussions, so please highlight open issues, questions, or areas where there may not be a clear consensus on the optimum source requirements or best experimental approach for a given area of science.

Workshop Objectives and Outcomes
  • Specify fundamental NGLS FEL performance requirements
    for specific areas of science & for specific experimental techniques
        -Photons/pulse, photons/sec, repetition rate
        -Tuning range, pulse duration and/or bandwidth
-Polarization control (purity, switching speed etc.)
-Stability requirements (pulse energy, wavelength, beam position…)
  • Suggest initial requirements for beamlines
-Beamline optics (split/delay, multiple beams, two-color, monochromators etc.)
-experimental endstations (injectors, sample manipulators etc.)
  • Alternatives analysis (other experimental approaches to meet scientific needs, other requirements)
  • Compare beamline & endstation equipment to the present state of the art
        - Identify areas requiring significant development
- Identify areas requiring significant development