Silicon saw-tooth refractive lens for high-energy X-rays made using a diamond saw.
Silicon is a material well suited for refractive lenses operating at high X-ray energies (>50 keV), particularly if implemented in a single-crystal form to minimize small-angle scattering. A single-crystal silicon saw-tooth refractive lens, fabricated by a dicing process using a thin diamond wheel, was tested with 115 keV X-rays, giving an ideal 17 microm line focus width in a long focal length, 2:1 ratio demagnification geometry, with a source-to-focus distance of 58.5 m. The fabrication is simple, using resources typically available at any synchrotron facility's optics shop.
Said
A H
AH
Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA.
Shastri
S D
SD
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