1. Soft Coherent Scattering and Imaging Chris Jacobsen, Stony Brook (Chris.Jacobsen@stonybrook.edu)Chris.Jacobsen@stonybrook.edu Cecilia Sánchez-Hanke, NSLS (hanke@bnl.gov)hanke@bnl.gov 2 hours A workshop is also a gathering or training session which may be several days in length. It emphasizes problem-solving, hands-on training, and requires the involvement of the participants.gatheringtraining Wikipedia def. for workshop

2. Background As you heard yesterday, there are 6 (4 hard + 1 EXAFS + 1 soft x-ray) beamlines in the construction project but there will be many more! NSLS-II is an EXCELLENT source for soft X-rays. We need to raise the interest in this energy range Our goals for today include: we want to hear what you have to say! –What should the construction project’s soft x-ray beamline include? Be able to do? –What other soft x-ray beamlines does the community desire? Endstations? Bending magnets as well as undulators? –What teams might we form for what beamlines?

3. Agenda Steve Kevan: –a perspective on soft x-ray coherent science Steve Hulbert: –proposed design of the construction project’s soft x-ray beamline. Discussion time –What science do you want to do? What do you need to do it? Chris Jacobsen Chang Stuart Wilkins

4. Gap for Kevan, Hulbert talks

5. Interdisciplinary concerns This session focuses on soft x-ray capabilities. They span many of the science areas that will be discussed this afternoon: –Life Sciences –Catalysis –Environmental Science –Strongly correlated electrons –Magnetism –Radiometry and metrology –Soft condensed matter –Basics science * –Material science * Can one coherent soft x-ray beamline serve all of these communities? Certainly not! How we group us together?

6. What do you want? Beamline requirements Focus spot size at the exit slit / on sample Energy bandwidth / Energy resolution Polarization control (linear/circular) fast-switching? Minimum flux requirements /radiation damage? R&D? Stability

7. What do you want? Specimen/endstation requirements: –Temperature/control (surface of the sample) –Vacuum how deep? Gas? Wet? Dry? –Magnetic/electric fields Detection: –Transmission? spatially resolved? # pixels? –Scattering/diffraction? dynamical range –Photoelectrons/fluorescence? resolution –Time resolved detection systems –Other detection systems?

8. Forming teams Organized by science end-goals, or by similarities in endstation requirements? What access mode? Who develops what endstation? How to go forward and organize teams? Organization of a workshop answering the previous questions… When?