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Beamline X17B1

General Information

Source Type
Insertion Device

Status
Operational

General User Beamtime
50%

Energy Range
55 - 80 keV monochromatic / 20-150 keV white

Beamline Type
Facility Beamline

Technique(s)
X-ray diffraction, powder

Institution(s)
NSLS
Rutgers University

Research Types
High 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.

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.
Zhong Zhong, Brookhaven National Laboratory, zhong@bnl.gov, 344-2117

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.
Zhong Zhong, Brookhaven National Laboratory, zhong@bnl.gov, 344-2117

Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
Zhong Zhong, Brookhaven National Laboratory, zhong@bnl.gov, 344-2117

Beamline Phone
631-344-5717

Instrumentation

Beamline Characteristics

Energy Range Mono Crystal or Grating Resolution (ΔE/E) Flux Spot Size (mm) Total Angular Acceptance (mrad)
55 - 80 keV Si(311) sagittal focusing double Laue 2 x 10-4 1 x 1011 ph/sec (@ 67 keV, 200 mA, 2.8 GeV) 0.5H x 2V (@ 67 keV, focused), horizontal size larger at other energies 5

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

Optical System
The 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/0.25 at 20keV. Monochromatic beams with energies tunable from 55 to 80 keV are provided with a Si(3110) sagitally bent Laue crystal, at typical flux rate of 1011 photons/s.

Experimental Apparatus
6-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 & Software
One 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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