High Resolution Spherical Grating Monochromator (SGM) 11ID-1


The beamline employs three diffraction gratings to provide users with a very bright, highly monochromatic photon beam, tunable between 250 and 2000 eV. The beamline is ideal for solid sample or gas phase spectroscopy but can be fitted with a variety of endstations.

  • Status

    Accepting Proposals

  • Spot size (Horizontal x Vertical)

    1000 μm x 100 μm

  • Wavelength

    62 – 6.5Å

  • Resolution E/Δ E

    >5000 (below 1500 eV)

  • Source

    45 mm planar undulator

  • Flux (γ/s/0.1%BW) @ 100 mA

    4x1012 @ 250 eV
    > 1 x1011@ 1900 eV

  • Energy Range

    250 – 2000 eV


Senior Scientist: Tom Regier (306) 657-3733
Associate Scientist: Jay Dynes (306) 306) 657-3840
Support Scientist: Zachary Arthur (306) 657-3708
Beamline Team Leader: T.K. Sham
Beamline Team Members (PDF)
Beamline Telephone: (306) 657-3612


Two horizontal deflecting mirrors and one vertical focusing mirror direct the light from the undulator through the entrance slit and onto the selected grating. The three gratings, with line spacing of 600, 1100 and 1700 lines/mm, diffract the light through a movable exit slit. A pair of toroidal refocusing mirrors are used to focus the beam onto the sample areas.


  • Auger Electron Spectroscopy (AES) or Partial Electron Yield (PEY)
  • X-ray Absorption Spectroscopy (XAS) with Partial Fluorescence Yield (PFY)
  • X-ray Excited Optical Luminescence (XEOL)
  • X-ray Photoelectron Spectroscopy (XPS)


  • Ambient Pressure XAS
  • University of Saskatchewan researchers Courtney Phillips (right) and Derek Peak (middle), along with the CLS Spherical Grating Monochromator (SGM) beamline scientist, Tom Regier.

  • from left: Marco Keiluweit, University of Massachusetts-Amherst, Jay Dynes, CLS, and Michael Schaefer, Standford on SGM

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