Mirror benders for white beam collimation at HASYLAB

At the Hamburger Synchrotronstahlungslabor HASYLAB two mirror benders are under construction which are intended to reduce the vertical divergence of the incoming white photon beam on the monochromator. The design of these benders are based on successfully used types for monochromatic beams. The aim of the improved design is to reduce the vertical divergence of the beam even under server thermal load. Ray tracing calculations show that even at first generation machines as DORIS such mirror gives a benefit to the experimental conditions. Finally the realization of the benders for a bending magnet and a wiggler beamline with a contact cooled mirror are shown and described.