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BEAMLINE X3A
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VIRTUAL TOUR |
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General Information
PARTICIPATING INSTITUTIONS:
 | Case Western Reserve University |
| Rockefeller University |
| Sloan Kettering Institute |
LOCAL CONTACTS:
SPOKESPERSON:
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CAPABILITIES
Energy Range
(keV) |
Crystal Type |
Bandwidth @ E=10 keV
(eV) |
Flux @ E=12658 eV, I=300mA,
(photons / sec through 0.2 x 0.2 square aperture) |
Size of Focus
(mm) |
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focused:
4.6 - 15.1
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Si (111) |
3 |
3.8 x 10^10 |
0.7 H x 0.08 V |
3 mm vertical and 50 mm horizontal beam aperture in hutch. Horizontal width up to
38
mm possible.
OPTICAL and BEAMLINE CONFIGURATION
| Primary Aperture :
7.4 m from source. |
| Be Windows :
front end : 0.010" thick; 8.6 m from source ; exit window: 0.020" thick. |
| Monochromator :
Double crystal monochromator with fixed exit geometry; Bragg angle range is 7.55 degrees - 28 degrees; sagitally focusing Si(111) crystals, high precision rotary energy scale; operates in high vacuum;
located 9.6meters from the source. Si (220) crystals are planned for the future. |
| Mirror :
For harmonics rejection and vertical focusing (0.08 mm FWHM); flat cylindrically bent mirror;
independent choice of mirror angle and focal length; located 11 meters from the source. |
EXPERIMENTAL APPARATUS
| Radiation hutch :
Located 13 meters from the source; 3 meters long and approximately
2.5 meters wide. |
| MAR 165mm CCD
Detector equipped with motorized Z-lift for 2-theta. |
| Phi axis has Z-translation.
Hence, pin length is not a restriction. |
| MAR Rotation Goniostat
with Supper kappa geometry. |
| Oxford cryojet for Cryocooling |
| computer controlled X-Y aperture and X-Y translation stage (75 lbs. load capacity) |
| two
transmission ion chambers with electronics (amplifiers, V/F
converters, scalers) |
COMPUTER SYSTEM HARDWARE AND SOFTWARE
| Beamline control
and data acquisition: 1 GHz P III computer running Windows XP; NSLS Data Acquisition Software with CAMAC interface; 3.5"
floppy drive, 250 MB Zip Drive, ethernet connection
for FTP data transfer |
| Beamline data
analysis: 1 GHz P III computer running Windows XP, 3.5" floppy drive, 250 MB Zip Drive, CD-RW
disk drive, ethernet connection for
FTP data transfer |
| Crystallography data
acquisition, processing, and analysis: SGI Octane R12000,
Pentium Pro running Linux Enterprise, dual-processor Pentium P750 Pro running Linux Enterprise; Robotic DVD burner. |
| Crystallographic software
: MARCCD software for data collection; HKL2000 for data processing; HKL2MAP, SHELX SUITE, SOLVE/RESOLVE, CCP4 for crystal structure analysis; COOT, Pymol, Xfit for model building. |
| Laser Jet 5MP (postcript) printer.
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Updated:
23 May 2007.
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