Experimental Station 13-1

Beamline 13-1 is a side-station of an elliptical undulator beamline that is dedicated for scanning transmission x-ray spectro microscopy of magnetic materials. The endstation is equipped with a  STXM microscope that provides 30 nm spatial resolution and a fast Avalanche photodiode that allows for time resolved pump probe experiments with 50 ps temporal resolution.

Status
Open
Supported Techniques
Soft x-ray absorption spectroscopy
X-ray Dichroism
Pump-Probe
Scanning Transmission X-ray Microscopy (STXM)
Main Scientific Disciplines
Condensed Matter Physics
Beam Line Specifications

Source

26-pole elliptical polarizing undulator (EPU), 0.25 mrad acceptance

  Energy Range Resolution ΔE/E Spot Size Flux (ph/sec)
Focused

500 - 1200 eV

~ 1 X 10-4 30 X 30 nm2 1 X 109

 

Optics

  • Horizontal flat followed by a vertical sphere, both Pt coated
  • Monochromator: Spherical Grating Monochrometer (SGM)
    • 300 l/mm, Ni coated
    • 600 l/mm, Ni coated
    • 1100 l/mm, Pt coated
  • Fresnel Zone Plate Optics 240 µm diameter, 80 µm Au stop

Absorption

N/A

Instrumentation
  • Detectors:  Avalanche Photodiode, Electron Yield
  • Synchronized Single Photon Counting Electronics
  • Excitation: Current pulses with < 10 ps rise time as well as continuous RF up to 12 GHz
  • Full synchronized with SSRL x-ray pulse pattern.
Sample Environment
  • < 10-7 mbar
  • Sample temperature: Room temperature
  • Sample size: 10 X 10 mm2
  • Magnetic fields  up to 0.8 Tesla along beam directions and up to 0.2 Tesla perpendicular
  • Minimum Sample Requirement: UHV compatible.
Data Acquisition and Analysis
  • SPEC
  • Origin
Beam Line Phone
650-926-5131
Beam Line Contact
Beam Line Engineering Notes

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