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Beamline X4C

General Information

Source Type
Bending Magnet

Status
Operational

General User Beamtime
25%

Energy Range
7-20 keV

Beamline Type
Participating Research Team (PRT)

Technique(s)
Multi wavelength anomalous diffraction
Macromolecular crystallography

Institution(s)
Albert Einstein College of Medicine
City University of New York (CUNY)
Columbia University
Cornell University
Mount Sinai School of Medicine
New York Structural Biology Center
New York University
Rockefeller University
SUNY @ Buffalo
Sloan-Kettering Institute for Cancer Research
Wadsworth Center

Research Types
Macromolecular crystallography, diffraction measurements from biology molecules.

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.
Wayne Hendrickson, Columbia University, wayne@convex.hhmi.columbia.edu, 212/305-3456

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.
Randy Abramowitz, New York Structural Biology Center, randy@bnl.gov, 631-344-5464
John Schwanof, New York Structural Biology Center, schwanof@bnl.gov, 631/344-5170

Beamtime Scheduler The beamline staff member responsible for coordination of beamline schedule every trimester. Contact for questions about beamtime scheduling.
John Schwanof, New York Structural Biology Center, schwanof@bnl.gov, 631/344-5170

Beamline Phone
631-344-3726

Instrumentation

Beamline Characteristics

Energy Range Mono Crystal or Grating Resolution (ΔE/E) Flux Spot Size (mm) Total Angular Acceptance (mrad)
7 – 20 keV Si(111) ~10-3   ~0.3H x 0.3V variable up to 6

Source Type
Bending magnet

Optical System
Slits: Variable vertical and horizontal slits.

Monochromator: Monochromator system consisting of a horizontally deflecting and focusing crystal preceded by a vertically focusing mirror. Distance from monochromator to sample is variable between 2.5 and 4.5 m. Distance from the monochromator to source is ~10.5 m.

Experimental Apparatus
MAR 345 mm image plate detector system.

Computer System Hardware & Software
PC Windows based control program. Data processing on Linux SGI workstation. Data backup on DVDs or convenient connection to Firewire or USB2.0 external drives.

Links