W. M. Keck Microfabrication Facility
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MSU PA
MSU
Equipment Resource
 

Bruker-AXS High Resolution X-ray Diffractometer

Bruker XRD

The Bruker High resolution X-ray diffractometer is used to study the crystal structure of materials. The diffractometer has the following features:

Key Features:

  • A Goeber mirror (40 mm length) to collimate the x-ray beam into a 0.8 mm wide parallel beam
  • A 4-bounce monochromator further reduces the beam divergence down to 12 arcsec.
  • A dual beam path analyzer detecting system (Variable slit or triple-axis analyzer)
  • Quarter cradle with motorized X/Y/Z/Chi/Phi

Specifications:

Optics for primary beamDivergence AngleBeam Intensity
Goeber Mirror110" (30 mdeg)900 x 106 cps
Goeber Mirror +
4-bounce Ge (220) monochromator
12" (3.3 mdeg)4.5 x 106 cps
Goeber Mirror +
4-bounce Ge (440) monochromator
5" (1.4 mdeg)0.15 x 106 cps

Optics for diffracted beamDivergence Angle
Varible slit0.1 to 3 deg
Triple-axis (Ge 3-bounce) analyzer 12" (3.3 mdeg)

DriveSmallest Step SizeRange
Theta0.0001 deg-4 deg to 170 deg
2Theta0.0001 deg-110 deg to 170 deg
Chi0.01 deg-11 deg to 98 deg
Phi0.01 degunlimited
X/Y0.01 mm-40 mm to 40 mm
Z0.01 mm-0.9 mm to 2 mm