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Focusing with saw-tooth refractive lenses at a high-energy X-ray beamline
S D Shastri1, P Kenesei1, A Mashayekhi1
1Advanced Photon Source, Argonne National Laboratory, Lemont, IL, USA.
Abstract:
The Advanced Photon Source 1-ID beamline, operating in the 40-140 keV X-ray energy range, has successfully employed continuously tunable saw-tooth refractive lenses to routinely deliver beams focused in both one and two dimensions to experiments for over 15 years. The practical experience of implementing such lenses, made of silicon and aluminium, is presented, including their properties, control, alignment, and diagnostic methods, achieving ∼1 µm focusing (vertically). Ongoing development and prospects towards submicrometre focusing at these high energies are also mentioned.
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