Liquid Surface X-ray Scattering

Reflectometer Specifications

15 ID-C Liquid Surface Scattering Reflectometer Specifications

Energy Range:

  • 5keV – 70keV

Energy Accuracy (ΔE/E):

  • ~10-4

Undulator Source Divergence (µrad)

  • Horizontal: (2 σ´x) 23
  • Vertical: (2 σ´y) 6 – 8

Undulator Source Size (µm)

  • Horizontal: 2 σ´x 540
  • Vertical: 2 σ´y 17

Sample table specification

  • Load: 250Kg
  • Travel (vertical direction): 400mm
  • Precision: <±2µm
  • Sample tabletop dimensions: 24in x 30in

Table For Typical Resolutions For Different Techniques At 15 ID-C

Parameters

Resolution

Comments

Δk ~±10-4k (Å-1) Determined by the Bruker monochromator
Δα ~±10-5 (rad) Determined by the incoming beam parameters
Δβ ~±10-5 (rad) For specular reflectivity, where reflected = incoming
Δβ ~±2*10-4 (rad) For off-specular using Pilatus area detector
Δβ ~±5*10-5 (rad) For off-specular using APEX-II area detector
ΔθD ~±2*10-4 (rad) In-plane diffraction using Pilatus area detector

Liquid Surface Contacts

Yu-Sheng Chen
Advanced Crystallography
(630) 252-0471
yschen@cars.uchicago.edu

Mati Meron
Beamline Optics
(630) 252-0468
meron@cars.uchicago.edu

Wei Bu
Beamline Scientist
(630) 252-0470
bu@cars.uchicago.edu

Liquid Surface/Interface Links

The following links provide further information regarding our liquid surface/interface x-ray scattering setup: