Toroidal Mirror for ID02 Beamline

One rhodium coated toroidal silicon X-ray mirror to be installed on the ESRF ID02 undulator beamline. The mirror will be integrated into an existing mirror system to provide focusing of the monochromatic X-ray beam between 8 and 20 keV. Outer dimensions 500 x 80 x 65 mm3 Clear aperture (CA) at least 400 mm long (L) and 8mm wide (W). Tangential radius 13.75 km +/- 0.5 km, sagittal radius 139.4 mm +/- 1.2 mm. Tangential slope error < 0.23 µrad rms (optionally < 0.14 µrad rms) over any 1 mm wide (in the sagittal direction) tangential trace on the C.A. Mean rms surface micro-roughness of the C.A. < 3 Å