Lacquer Coated X-Ray Optics

Techniques for surface finishing figured X-ray optics by a lacquer coating process are described. This lacquer coating can be applied with an optical quality of λ/8 at 6328A and very effectively covers surface roughness with spatial frequencies more than ~ 5 mm -1 . Tungsten films have been deposited on the lacquer coatings so that the surface provides highly efficient X-ray reflectivity.