Beamline-ready diamond x-ray lens

Due to its outstanding thermal properties and low x-ray loss diamond had been considered a material for x-ray refractive optics for a long time. Several diamond lens prototypes had been produced by various groups and tested at different light sources. However a commercial grade diamond lens is not yet on the market. Because of the large number of complex fabrication steps involved (packaging, laser ablation, polishing and metrology) combined with stringent accuracy requirements (1 micron standard deviation from the designed paraboloid shape) diamond lenses are not consistent from one to another. In this paper we will review the recent progress in lens development and share results demonstrating that a beamline-ready diamond refractive lens is now available.