Photon Sciences   |   Brookhaven National Laboratory

X12B External Website

Beamline X12B

  • General Information

    • Source Type
      Bending magnet

      Status
      Operational

      General User Beamtime
      25%

      Energy Range Category
      Hard X-Ray (1-50 keV)

      Energy Range
      5-20 keV

      Beamline Type
      Facility Beamline

      Technique(s)
      Multi wavelength anomalous diffraction
      Macromolecular crystallography

      Research Types
      Macromolecular crystallography, multi-wavelength anomalous dispersion, mail-in and remote participation crystallography.
  • 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.
      Dieter Schneider, Brookhaven National Laboratory, schneider@bnl.gov, 344-3423
      Alexei Soares, Brookhaven National Laboratory, soares@bnl.gov, 344-7306

      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.
      Dieter Schneider, Brookhaven National Laboratory, schneider@bnl.gov, 344-3423
      Alexei Soares, Brookhaven National Laboratory, soares@bnl.gov, 344-7306

      Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
      Alexei Soares, Brookhaven National Laboratory, soares@bnl.gov, 344-7306

      Beamline Phone
      631-344-5712

  • Instrumentation

    • Beamline Characteristics

      Energy RangeMono Crystal or GratingResolution (ΔE/E)FluxSpot Size (mm)Total Angular Acceptance (mrad)
      5 – 20 keV Si(111) 8 x 10-4 ~2 x 1010 ph/sec 0.5H x 0.3V variable to 2

      Source Type
      Bending magnet

      Optical System
      The X12B beamline optics consist of a vertically collimating mirror (that is shared with X12C) followed by a channel-cut Si(111) crystal monochromator and a doubly focusing toroidal mirror.

      Experimental Apparatus
      The X12B endstation contains an ADSC Q4 CCD x-ray area detector mounted on a two-circle diffractometer, and an Oxford Cryosystems 700 series cryostream system for sample freezing. A custom-manufactured automatic sample mounting robot is available.

      Computer System Hardware & Software
      Networked array of Linux PCs. CBASS data collection software, HKL2000 data analysis software.
  • Links