The PureEdge 240 collimator was developed in cooperation with Lawrence Berkeley National lab as part of an upgrade to beamline 12.3.1. Crystal samples of varying sizes should be matched to a corresponding aperture size to optimize signal to noise ratio during data acquisition. The concept behind this develop-ment is to replace the tedious process of swapping in dif-ferent size pinhole apertures with a controllable dual slit design. The design had to be stable and offer an improvement in x-ray scatter. Also, an improvement in the initial alignment technique was part of the new collimation concept.

• accurate parallel motion using
  FEA optimized guidance
• patented solid state hinges offer motion
  without mechanical play (0 backlash)
• independent aperture control of 2 edge
  pairs up to 240µm with closed loop
• 16 bit or 20 bit control options
• Extremely low-scatter

applications:

• X-Ray crystallography
• X-Ray collimation
• Small Angle Xray Scatter (SAXS)

• Datenblatt Pure Edge 240 X-Ray Collimator
• Broschüre 240 X-Ray Collimator