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Beamline X19C

General Information

Source Type
Bending Magnet

Status
Operational

General User Beamtime
25%

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

Energy Range
6-17 keV

Beamline Type
Participating Research Team (PRT)

Technique(s)
X-ray diffraction, surface
X-ray topography
X-ray reflectivity
X-ray scattering, liquid
X-ray scattering, surface

Institution(s)
Fairfield Crystal Technology, LLC
Kansas State University
SUNY @ Albany
SUNY @ Stony Brook, Materials Science and Engineerin
University of Illinois @ Chicago

Research Types
Scattering from liquid surfaces and interfaces. Topographic study (primarily white beam) of defects in single crystal materials.

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.
Michael Dudley, ., mdudley@notes.cc.sunysb.edu, 6316328500
Mark Schlossman, University of Illinois @ Chicago, schloss@uic.edu, 312/996-8787

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.
Balaji Raghothamachar, SUNY @ Stony Brook, braghoth@notes.cc.sunysb.edu, 6316324183

Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
Michael Dudley, ., mdudley@notes.cc.sunysb.edu, 6316328500

Beamline Phone
631-344-5719

Instrumentation

Beamline Characteristics

Energy Range Mono Crystal or Grating Resolution (ΔE/E) Flux Spot Size (mm) Total Angular Acceptance (mrad)
4 – 25 keV White Beam White Beam 4.16 x 1012 ph/sec (@ 4.9 keV, 100 mA, 2.5 GeV) 40.0H x 7.0V 2
6 – 17 keV Si(111) 0.002 Unmeasured 0.5H x 0.5V 2

Source Type
Bending magnet

Optical System
White Beam Mode: Slit-defined white radiation; capability of introducing various absorbers into beam path to modify spectral distribution.

Monochromator Mode: Constant offset double flat crystal (Golovchenko type) monochromator; first crystal is water-cooled; operates in the atmosphere; operates in tandem with multiple crystal topography camera downstream of monochromator; easily positioned in and out of beam path; located inside radiation hutch 21 meters from the source.

Focused and Monochromated: Cylindrically cut, rhodium coated, aluminum mirror mounted on a bender provides horizontal and vertical focusing. Si(111) installed in the hutch provides an ~1% bandpass.

Experimental Apparatus
Radiation hutch; five circle Huber goniometer with computer controlled robotic detector arm for positioning X-ray detectors; environmental chamber with beryllium exit and entrance windows; chamber mounts in eulerian cradle of white beam camera, remote manipulators, furnace, deformation stage; scintillation detectors; real-time X-ray television system; dark-room for development of X-ray films; Surface spectrometer installed in hutch.

Computer System Hardware & Software
Sun Ulta 5, Solaris 7 using SPEC for motor software.

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