Refractive x-ray focusing with modified phonograph records

Bjoern Cederstroem; Robert N. Cahn; Mats Danielsson; Mats Lundqvist; David Robert Nygren

doi:10.1117/12.371105

23 November 1999 Refractive x-ray focusing with modified phonograph records

Bjoern Cederstroem, Robert N. Cahn, Mats Danielsson, Mats Lundqvist, David Robert Nygren

Proceedings Volume 3767, EUV, X-Ray, and Neutron Optics and Sources; (1999) https://doi.org/10.1117/12.371105
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

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.

Citation Download Citation

Bjoern Cederstroem, Robert N. Cahn, Mats Danielsson, Mats Lundqvist, and 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); https://doi.org/10.1117/12.371105

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