23 November 1999 Refractive x-ray focusing with modified phonograph records
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We present a novel design of a refractive x-ray lens. It is shown that a lens with a simple saw-tooth profile will have the same focusing properties as one with parabolic surfaces. The lens can be made in two symmetric pieces, and be fabricated with a standard record-cutting machine at a very low cost. Furthermore, the focal length for a given energy can be adjusted by a simple mechanical procedure. A prototype in vinyl with a focal length of 20 cm for 25 keV x-rays has been manufactured. Measurements in a table-top setup with a conventional x-ray tube are in good agreement with calculations based on geometrical optics and ray-tracing simulations.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bjoern Cederstroem, Bjoern Cederstroem, Robert N. Cahn, Robert N. Cahn, Mats Danielsson, Mats Danielsson, Mats Lundqvist, Mats Lundqvist, David Robert Nygren, David Robert Nygren, "Refractive x-ray focusing with modified phonograph records", Proc. SPIE 3767, EUV, X-Ray, and Neutron Optics and Sources, (23 November 1999); doi: 10.1117/12.371105; https://doi.org/10.1117/12.371105


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