Beam Compressor
of a 1-dimensional compressed parallel beam

Special features

• Combination of a focusing and a convex bent collimating multilayer optics
• Adjustable beam width b at sample position
• Emission of a compressed parallel sub-millimeter beam
• Generation of a monochromatic (Ka₁₊₂)
  parallel spot with a width
  0.25 mm < b’ < 1.0 mm

Cu Ka-reflectance of a Ni/C graded multilayer
at d= 3.66 nm (gradient Dd/Dx = 2 x 10^-8), measured in Y-direction perpendicular to gradient of period thickness

Application:
sub-millimeter X-ray-reflectometry

• Ni/C gradient multilayer:
  direction of period thickness gradient (X)
  perpendicular to beam direction (Y)
• spot size of the compressed Cu Ka_1,2
  2 -X-ray beam (Z x X) 0.3 mm x 0.6 mm

Reflectometry result:
No remarkable peak broadening at high peak intensities