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Beamline X22B

General Information

Source Type
Bending Magnet

Status
Operational

General User Beamtime
25%

Energy Range
8 keV (fixed energy)

Beamline Type
Participating Research Team (PRT)

Technique(s)
X-ray scattering, liquid

Institution(s)
Brookhaven National Laboratory, CMPMSD, X-ray scattering
Brookhaven National Laboratory, CFN

Research Types
X-ray reflectiviy and grazing incidence angle diffraction from liquid surfaces: liquid metals, liquid crystals, organic photovoltaic materials, Langmuir films, nanowetting and solvent induced self-assembly of nanoparticles and polymer films.

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.
John Hill, Brookhaven National Laboratory, hill@bnl.gov, 344-3736

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.
Benjamin Ocko, Brookhaven National Laboratory, ocko@bnl.gov, 344-4299
Masafumi Fukuto, Brookhaven National Laboratory, fukuto@bnl.gov, 344-5256

Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
Benjamin Ocko, Brookhaven National Laboratory, ocko@bnl.gov, 344-4299

Beamline Phone
631-344-5622

Instrumentation

Beamline Characteristics

Energy Range Mono Crystal or Grating Resolution (ΔE/E) Flux Spot Size (mm) Total Angular Acceptance (mrad)
5 – 10 keV Ge(111) >2 x 10-3 5 x 1011 ph/sec <1H x 0.4V 1

Source Type
Bending magnet

Optical System
Mirror: Bent, cylindrical, platinum coated siliconfocusing mirror for 2:1 focusing in the vertical and horizontal.

Monochromator: Single flat crystal monochromator, adjustable horizontal and vertical slits before monochromator; monochromator vacuum isolated form beamline by beryllium windows; located 18 meters from the source.

Experimental Apparatus
Liquid Surface Spectrometer, point detector, CCD and linear detector. Vibration isolation for the sample.

Computer System Hardware & Software
Computer: PC/AT Compatable, Linux OS

Beam Line Controls: GPIB; SPEC control software (by Certified Scientific Software) . Approximately 50
stepping motors.

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