Undulator Beamline X25
protein
crystallography
research resource

X25 Contacts    
Lonny Berman spokes person (631) 344-5333 berman@bnl.gov
Robert Sweet spokes person (631) 344-3401 sweet@bnl.gov
Annie Héroux local contact (631) 344-4454 heroux@bnl.gov
Anand Saxena local contact (631) 344-4844 asaxena@bnl.gov
Grace Shea-McCarthy (631) 344-2025 sheamc@bnl.gov
Steve LaMarra (631) 344-5312 slamarra@bnl.gov
Beamline Phone (631) 344-5625  
All X25 Personnel


X25 Characteristics    
Beamline X25 exploits the high-flux radiation derived from a new 55-period hybrid in-vacuum mini-gap undulator that replaced the beamline's wiggler in January 2006. The MGU is the centerpiece of the ongoing X25 Upgrade supported by the DOE Office of Biological and Environmental Research and the NIH National Center of Research Resources.
Currently, the undulator beam is focused sagitally and vertically by a Pt-coated mirror. It is followed by a Si-111 double crystal monochromator that provides a broad range of 3-28 keV (0.4-4.1Å) x-rays with a resolution and a combined monchromator and undulator gap control suited for MAD experiments.
 
Monochromator Si(111)
Energy Range 3-28 keV
E-Resolution ~3 x 10-4
Acceptance HxV 0.4 x 0.15 mrad
Native Focus HxV 0.8 x 0.3 mm
Spot Diameter 0.1 - 0.5 mm
Flux at 1.1Å 2.4x1011ph/s
Data above apply to retired wiggler.
New undulator data forthcoming.

The ADSC Q315 CCD detector has a square active area of 315 mm sides and is read outs in 1s. more on detector system   A mini kappa drive on top of the omega spindle provides capabilities to orient crystals for optimal data collection.   The new mini-gap undulator drives continuing upgrades at X25. For info visit the
X25 Upgrade Reports


X25 Documentation   Additional Info for X25 Users     X25 operation log
X25 Safety Checklist
X25 BLOSA Form CBASS Manual
Microdiffractometer control
X25 Kappa Goniometer Head
HKL2000 X25 315 def.site
  X25 Upgrade Reports
Subscribe to the X25 List Server Upgrade Poster 2006

Page upgrades overdue. September?

 
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