X17B2 External Website

Beamline X17B2

  • General Information
    • Source Type
      7-pole superconducting wiggler, 4.2T, 17.4 cm period

      Status
      Operational

      General User Beamtime
      50%

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

      Energy Range
      Hard X-ray (20-130 keV)

      Beamline Type
      Facility Beamline

      Beamline Description
      High-resolution and single-crystal and powder scattering at 30 to 90 keV, high pressure physics and geology using large-volume press. The X17 4.2T super-conducting wiggler produces high-energy x-rays with a critical energy of 22 keV. White beam or monochromatic beam can be used in the experimental hutches. Typical flux for white beam is 5x1014 photons/s/1%bw/0.25A at 20keV. X17B2 support specialized high pressure apparatus including an 1100 ton hydraulic press.

      Technique(s)
      X-ray diffraction, powder
      X-ray diffraction, time resolved
      High Pressure Research

      Institution(s)
      COMPRES
      NSLS
      SUNY Stony Brook Mineral Physics Institute

      Research Types
      High Pressure Mineral Physics

  • Contact Information
  • Instrumentation
    • Beamline Characteristics

      Energy RangeMono Crystal or GratingResolution (ΔE/E)FluxSpot Size (mm)Total Angular Acceptance (mrad)
      14 - 100 keV (White Beam) White Beam 500 eV 1014 ph/sec/0.1%bw/mm2 1H x 1V

      Source Type
      7-pole superconducting wiggler, 4.2T, 17.4 cm period

      Optical System
      Filters: Beamline contains 0.391 mm of graphite filters, .500 mm silicon filter, and 2.0 mm of beryllium windows. Apertures: Beamline apertures located 19 meters from the source control the vertical and horizontal source size available to the monochromator crystals.

      Experimental Apparatus
      Large-volume (~1 cu mm) multi-anvil press in either cubic or octahedral mode, providing pressures up to 29 GPa and temperatures up to 2000 K. Detectors include (1) a single-element solid-state Ge detector; (2) a 13 element solid-state Ge detector, of which 4 are used; (3) x-ray imaging via a YAG crystal, 10x magnifier, and CCD and video cameras; (4) Bruker CCD x-ray camera, and (5) TIP (translating imaging plate). Non-hydrostatic deformation and ultrasonic interferometric measurements are each supported in conjunction with the above high pressure and temperature apparatus.

      Computer System Hardware & Software
      VME crate with a Linux boot host; a Windows 2003 server for data, a Windows 7 computer as a soft IOC and 4 Windows XP workstations, one of which is also a soft IOC. All of these are part of the EPICS conviguration. Backups of the servers are automatically performed to external hard drives. An HP 4500 color LaserJet printer is available for beamline use.

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