EXPERIMENTAL STATION 7-2

CURRENT STATUS: Open
SUPPORTED TECHNIQUES: X-ray scattering
X-ray diffraction
MAIN SCIENTIFIC DISCIPLINES: Materials / Environmental
% TIME GENERAL USE: 100%
SCHEDULING: see Proposal Submittal and Scheduling Procedures
SOURCE: 20-pole, 2-Tesla Wiggler ID End Station
BEAM LINE SPECIFICATIONS:
  energy range resolution
DE/E 		spot size flux angular
acceptance
focused
5000 - 16000 eV
0.12 x 0.50 mm
 
 0.4 mrad
OPTICS: Bent cylinder, single crystal Si, Rh-coated M0 mirror
Radii: 2945 m (adjustable) x 56.1 mm
Mean angle of incidence: 4.36 mrad
Cut off energy: 14.5 keV
Magnification: 1.0
MONOCHROMATOR: LN2-cooled, sagitally focusing, double crystal
Si(111)
Upward reflecting
ABSORPTION: 546 micron Be, 2.4 m He, 15.2 micron C
INSTRUMENTATION: A Huber 6-circle diffractometer is permanently installed on BL7-2 for high-resolution x-ray scattering research. The six spectrometer degrees of freedom are (theta,chi,phi) for the sample, and (2-theta, theta-analyzer, 2-theta-analyzer) for the detector. In addition, the input wavelength can be scanned, and the spectrometer coordinates can be remotely adjusted. Software is available for scanning between an arbitrary pair of reciprocal lattice vectors.
DATA ACQUISITION AND ANALYSIS: Diffractometer Control Software: SUPER
RESPONSIBLE STAFF: Bart Johnson, 650-926-3858
Mike Toney, 650-926-2056
BEAM LINE PHONE NUMBER: 650-926-5272
GENERAL DESCRIPTION: BL7-2 is dedicated to x-ray scattering and diffraction experiments in materials and environmental science. Because of high demand, research is confined to problems that can only be addressed with this unique facility. Typical programs involve intrinsically weak scattering systems, such as two-dimensional arrays and high-resolution 3-D problems.
SCIENTIFIC APPLICATIONS /
SELECTED RESULTS:
ENGINEERING NOTES http://www-ssrl.slac.stanford.edu/safety/beamlines/bl7/

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Last Updated: 22 APR 2008
Content Owner: Bart Johnson
Page Editor: Nikola Stojanovic