KB mirror and bending system

This system offers mirrors with variable elliptical shape with high optical performances.
Measurement on silicon mirrors gave a slope error lower than 0.7 µrad on a 250mm optical length for a 300 mm total length.
Thanks to the very low contribution of the bender , we can offer, on special request,  0.4 µrad.
This concept is specially dedicated to short curvature radii, like those used for micro-focusing in KB configuration.

Design features of the bending system :
High optical performances with mirrors elliptically bent, need a high design level :
- high accurate bending moments actuated by two electrical jack systems, at each extremity of the mirror. Each moment is controlled independently by means of a strain gauge
- actuating system designed with a full isostatic configuration, which minimises the mirror torque (collapse)
- a mirror self-weight sag compensation by means of two calibrated counterweights
- compatibility with high vacuum and gas pressure environment.

References
This product has been delivered to :
ANKA : SUL beamline

Full documentation