Hard x-ray imaging by Multilayer Zone Plates
Combined Optics and Sample Tower
Degrees of Freedom for MZP alignment
First, the zone plate has to be placed in the illuminating
beam; this is done by scanning in y and
z (lateral) direction, possibly in a
x defocus of a larger x-ray beam.
When the illuminating beam has been found, the rotational
degrees of freedom (tip and tilt) have to be aligned with
the yrot/zrot motors.
Finally, the MZP is moved slowly along the optical path
(which is not necessary parallel to x) into its
final position with lateral re-alignments.
SLC and STT motors moved to extreme positions (Rendering).
See also these animations showing the typical movements during MZP alignment:
Animation showing the typical alignment of Multilayer Zone Plate optics in a hard x-ray beam.
Animation showing the typical alignment of Multilayer Zone Plate optics in a hard x-ray beam; second angle.