Theoretical and experimental studies of x-ray concentrators based on the whispering-gallery effect

Vladimir I. Ostashev; Igor A. Abramov; Alexandr M. Makarkin; Leonid N. Shamraev

doi:10.1117/12.411638

5 January 2001 Theoretical and experimental studies of x-ray concentrators based on the whispering-gallery effect

Vladimir I. Ostashev, Igor A. Abramov, Alexandr M. Makarkin, Leonid N. Shamraev

Proceedings Volume 4145, Advances in X-Ray Optics; (2001) https://doi.org/10.1117/12.411638
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

Citation Download Citation

Vladimir I. Ostashev, Igor A. Abramov, Alexandr M. Makarkin, and 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); https://doi.org/10.1117/12.411638

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