Photon Sciences |
Brookhaven National Laboratory
Source Type7-pole superconducting wiggler, 4.2T, 17.4 cm period
General User Beamtime50%
Energy Range55 - 100 keV monochromatic / 20-150 keV white
Beamline TypeFacility Beamline
Beamline DescriptionHigh-resolution and single-crystal and powder scattering at 55 to 100 keV, Energy Dispersive X-ray Diffraction, and micro-beam radiation therapy research. 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. The double crystal monochromator incorporates a sagittally focusing Laue method. A 6-circle Huber diffractometer with kinematic mount is equipped with Si (220) analyzer and four sets of adjustable slits for high-energy x-ray diffraction experiments. The X17B1 hutch can accommodate a wide range of additional experimental hardware.
Technique(s)X-ray diffraction, powder
Institution(s)GE Global ResearchNSLSRutgers UniversityStony Brook University
Research TypesHigh energy x-ray scattering, in-situ diffraction, high-resolution x-ray diffraction, high-energy x-ray instrumentation development, stress-strain mapping, Micro-beam Radiation Therapy research.
Optical SystemThe X17 super-conducting wiggler provides high-energy x-rays with a critical energy of 22 keV. White beam or monochromatic beam can be used in the experimental hutch. Typical flux for white beam is 5 x 1014 photons/s/1%bw/0.25Å at 20keV. Monochromatic beams with energies tunable from 55 to 100 keV are provided with a Si(311) sagitally bent Laue crystal, at typical flux rate of 1011 photons/s.
Experimental Apparatus6-circle Huber diffractometer with kinematic mount, equipped with Si(220) analyzer and four sets of adjustable slits for high-energy x-ray diffraction experiments. Choice of NaI, Ge, and image plate detectors are available. Hutch can accommodate a wide range of additional experimental hardware. Experimental proposals should highlight the use of the wiggler's high energy spectrum.
Computer System Hardware & SoftwareOne PC486 with a LINUX operating system, X-Windows, SPEC, and CPLOT for operating the monochromator and experimental apparatus via CAMAC and a PCAII MCA board.
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