Experimental Station 10-2a

Beam line 10-2 is a wiggler end-station that splits time between the front hutch (BL10-2a), which has a dedicated 2-circle diffractometer that is used for materials scattering and the back hutch (BL10-2b), which is instrumented for x-ray absorption spectroscopy for chemistry/catalysis. The beamline supports the use of multiple area detectors, as well as point detectors with a crystal analyzer for higher angular resolution. 

Supported Techniques
X-ray scattering
Main Scientific Disciplines
Energy Science
Materials Sciences
Beam Line Specifications


33-pole, 1.27-Tesla wiggler, 1.5 mrad acceptance

  Energy Range Resolution ΔE/E Spot Size Flux
Focused 5000-22000 eV 1 x 10-4 0.2 x 0.43 mm2 ~1012
Unfocused 5000-22000 eV 1 x 10-4 2.0 x 20.0 mm2 N/A



M0 mirror: vertically and horizontally focusing Rh coated bent cylinder 1.2 m long.

Monochromator: LN2 cooled, Si(111) φ = 90°, upward reflecting, double crystal

Monochromator Crystal Glitch Library 


508 micron Be, 4.4 m He, 205 micron graphite (fixed), 1016 micron graphite (insertable, user controlled)



  • Single element Vortex detector(s)
  • Area detector: Dectris Pilatus 100K (83.8 x 33.5 mm2 area, 172 x 172 micron2 pixels)
  • By request, Area detector: Dectris Eiger 1M (77.1 x 79.7 mm2 area, 75 x 75 micron2 pixels)


Huber 2-circle diffractometer. Two diffractometer degrees of freedom are Θ for the sample and 2Θ for the detector.

Custom: (Please contact staff)

  • A stack of motorized Parker linear stages to support larger experimental chambers. (e.g electrochemical chambers, blade and spin coaters, annealing chambers)
  • Variable filters to alleviate beam damage.
  • Adjustable slits for defining spot size on sample.
  • Soller slits.
  • Beam stop to remve elastic scattering from area detector.
  • Motorized syringes to inject fluids
  • Sample cameras and overhead cameras to monitor experiment.
Sample Environment

Potentiostat for electrochemical measurements.

Cryocon temperature controller.

Anton-Paar furnace (300 - 1150 K) Contact staff.

Data Acquisition and Analysis

Data Acquisition: spec, SPECplot GUI, XMAPgui (for Vortex detector)

Beam Line Phone
650-926-5102. On-site Users: Contact the Duty Operator at 9-926-4040
Beam Line Contact

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