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    Techniques   USAXS / SAXS / WAXS: Instrument Specifications  
» Techniques
  • SAXS/WAXS
   :. Instrument
Specifications

   :. Camera Setup
   :. Q-range
   :. Sample Setup
   :. Software

Contact: Jim Viccaro, +1 630.252.0464 (APS) or +1 773.702.1598 (The University of Chicago), viccaro@cars.uchicago.edu

15-ID-D SAXS Instrument Specifications

Q-range

  • X-ray Energy Range: 6 - 30 keV
  • X-ray Wavelength Range: 0.4 - 2.0 Å
  • Energy Resolution: (Diamond 111 mono) 10-4 ΔE/E
  • Available Camera Lengths (approx.): 0.6, 1.9, 6.8 m
  • Current Beam Stop Radius: 2 mm
  • Max. Camera Exit Window Radius: 127 mm
  • Qmin: (1.5 Å, camera length = 6.8 m) 0.0015 Å-1

Beam Flux

  • Focusing (Bent mirror with multiple stripes Vertical): 1:1
  • Estimated flux of full beam (2.5 x 0.1mm 1:1 vert. focus at 8 keV): 1013 photon/sec.
  • Max beam size (Restricted to minimize parasitic scatter): 200 - 500 µm
  • Estimated Flux for 0.2 x 0.1mm beam: 1012 photon/sec.

Sample Infrastructure

  • Remote parallax-free alignment (<50 µm optical resolution) allows easy optical alignment of fibers or small regions in larger samples
  • High Precision X-Y sample alignment of samples and environmental stages (up to 1000lbs) with 5 µm precision.
  • In-vacuum (windowless) or in-air sample operation.
  • 1 meter clear floor footprint available for user-supplied equipment such as: sample chambers, fiber spinning/conditioning apparatus, shear cells etc.

Detectors

  • BAS2500 imaging plate scanner (2000x2500 mm, 100 µm pixel size) 105 dynamic range and low background noise, but difficult to get direct quantitative comparison between different images. Inconvenient for many exposures as it requires a hutch entry and exit for each slot. Currently available.
  • Bruker 6000 CCD Detector (94x94mm, 92 µm pixel size) reasonable area coverage especially if the beam center is placed to one side of active frame. Few second read-out time. Currently available.


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