Two X-ray mirrors for ID18 Beamline

Supply of two flat X-ray mirrors for white-beam mirror system for ID18 beamline. The mirror substrates will each provide three distinct optical apertures differing only in their surface coatings. Supply of coated mirror optics only (no optomechanics) Mirror 1: Material Single crystal silicon Overall dimensions (LxWxH) 480x60x80 mm3 3 flat zones Meridional Slope error for all zones (rms) <0.1 or 0.05 µrad Surface roughness (rms) <3 Å Coatings Pt, (Si), Rh Mirror 2: Material Single crystal silicon Overall dimensions (LxWxH) 960x60x70 mm3 3 flat zones Meridional Slope error for all zones (rms) <0.1 or 0.05 µrad Surface roughness (rms) <3 Å Coatings Pt, (Si), Rh