Beamline 23-ID-2

  • General Information
    • Source Type
      Elliptically Polarizing Undulator(s) (EPUs). The beam line optics permit use of one or both undulators in the 23 ID straight section.


      General User Beamtime

      Energy Range Category
      Soft X-Ray (0.1-1 keV)

      Energy Range
      250 eV to 2 keV

      Beamline Type
      Facility Beamline

      Beamline Description
      The CSX beamlines (CSX-1 and CSX-2) are served by two identical EPU49 sources. These EPUs serve the beamlines in three possible modes. 1) Both undulators in-line serving the CSX-1 branch to provide the highest coherent flux. 2) canted serving the CSX-2 branch to enable fast switching of two polarization states and 3) canted to allow simultaneous use of both branches.

      X-ray Absorption Spectroscopy
      X-ray Photoelectron Spectroscopy

      Research Types
      Soft x-ray spectroscopy: Catalysis and Other Chemistry Applications (In-Operando XAS, Ambient Pressure Photoemission)

  • Contact Information
    • Spokesperson The person from each beamline who acts as a contact point between the beamline management and NSLS administration. Contact for questions about the beamline scientific program, experimental capabilities, and beamline management.
      Iradwikanari Waluyo, Brookhaven National Laboratory,, 344-3421

      Local Contact The beamline staff member who is typically responsible for overseeing the daily operation and maintenance of the beamline. Contact for questions about beamline instrumentation, experimental details, and training.
      Adrian Hunt, Brookhaven National Laboratory,, 344-3550
      Jorge Boscoboinik, Brookhaven National Laboratory,, 344-7272

      Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.

      Beamline Phone

  • Instrumentation
    • Beamline Characteristics

      Energy RangeMono Crystal or GratingResolution (ΔE/E)FluxSpot Size (mm)Total Angular Acceptance (mrad)
      0.25 keV to 2 keV

      Source Type
      Elliptically Polarizing Undulator(s) (EPUs). The beam line optics permit use of one or both undulators in the 23 ID straight section.

      Optical System
      Variable line spacing - plane grating monochromator (VLS-PGM).

      Experimental Apparatus
      1. Ambient pressure photoelectron spectroscopy endstation with SPECS PHOIBOS 150 NAP electron analyzer. 2. In situ and operando X-ray absorption spectroscopy endstation with total electron yield and Vortex SDD partial fluorescence yield detector

      Computer System Hardware & Software
      Beamline components are controlled by EPICS. The user interface is through the Python and Control System Studio (CSS) clients. The user views the experimental system (sample and the surrounding environment) through CCD-coupled optical microscopes with Prosilica cameras. Linux Debian for running Workstations and IOCs.

  • Links