Nanoprobe Discussion Session Summary

1
Nanoprobe Discussion Session Summary

• What are the key scientific drivers? What
  experiments will NSLS-II enable that are not
  presently possible?
• Spatial Fluorescence Maps, Differential phase
  contrast, nanostructures/catalyst structure
  determination. Dilute systems Composition.
  Spectroscopy.
• What technical capabilities will these require?
  (Beamlines, endstations, undulators)
• Undulator
• 2 beam endstations 1nm, and 10-20nm
• Build 2 separate endstations, which will allow a
  wider range of tools (diffraction..)
• Use/include achromatic optics (mirrors) for the
  lower resolution,
• Monolithic sample/optics assembly
• X-ray zoom to make it more like an optical
  microscope. (Limited full field)
• This instrument will require serious engineering
  design.
• What detector requirements does this field have?
  Do these require RD?
• Because space is tight in the business end of
  these devices a large NA fluorescence detector is
  required, commercial design not available
• Izero monitor for nanofocusing applications with
  mm working distances.

2

• What software and computing infrastructure
  requirements are there? (Control, data
  acquisition, analysis)
• Since one may have limited data sets (limited
  rotations, limited detector access, one has to
  have software that can help piece together
  different pieces, for example fluorescence map
  with transmission phase contrast map. Phase
  retrieval
• Any particular conventional facility
  requirements?
• Noise/vibrations mitigation. Hutch temperature
  control. Floor monitoring. Electrical noise.
• Any particular accelerator requirements?
• Beam position monitors to keep beam stable and
  perhaps ultimately feed into the sample
  positioning assembly.
• Environment?