5 January 2001 Theoretical and experimental studies of x-ray concentrators based on the whispering-gallery effect
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Abstract
We present the results of experiments with the concentrators based on the whispering-gallery effect and designed to transform a parallel x-ray beam into a converging one. A technology for manufacturing concentrators to focus parallel beams into small-sized spots is developed. The present status of the technology demonstrates the concentrators for the soft ((lambda) equals 44.6 angstrom) and intermediate ((lambda) equals 2 - 3 angstrom) x-ray bands. Using the UKROP facility, studies of the concentrator focusing properties were performed. For the soft x-ray radiation, the focal spot diameter was measured as 0.17 mm (FWHM), focal-spot-to- incident-beam intensity growth coefficient was evaluated as 180, and the radiation transmission efficiency was estimated as 8%. For the intermediate x-ray radiation, the focal spot diameter was found as 40 - 50 micrometer (FWHM) and the sevenfold growth of intensity was evaluated.
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Vladimir I. Ostashev, Vladimir I. Ostashev, Igor A. Abramov, Igor A. Abramov, Alexandr M. Makarkin, Alexandr M. Makarkin, Leonid N. Shamraev, Leonid N. Shamraev, } "Theoretical and experimental studies of x-ray concentrators based on the whispering-gallery effect", Proc. SPIE 4145, Advances in X-Ray Optics, (5 January 2001); doi: 10.1117/12.411638; https://doi.org/10.1117/12.411638
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