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Proceedings Paper

Theoretical and experimental studies of x-ray concentrators based on the whispering-gallery effect
Author(s): Vladimir I. Ostashev; Igor A. Abramov; Alexandr M. Makarkin; Leonid N. Shamraev
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Paper 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.

Paper Details

Date Published: 5 January 2001
PDF: 6 pages
Proc. SPIE 4145, Advances in X-Ray Optics, (5 January 2001); doi: 10.1117/12.411638
Show Author Affiliations
Vladimir I. Ostashev, Russian Federal Nuclear Ctr. (Russia)
Igor A. Abramov, Russian Federal Nuclear Ctr. (Russia)
Alexandr M. Makarkin, P.N. Lebedev Physical Institute (Russia)
Leonid N. Shamraev, Russian Federal Nuclear Ctr. (Russia)

Published in SPIE Proceedings Vol. 4145:
Advances in X-Ray Optics
Alan G. Michette; Andreas K. Freund; Tetsuya Ishikawa; Sebastian Oestreich; Derrick C. Mancini; Ali M. Khounsary; Derrick C. Mancini; Alan G. Michette; Sebastian Oestreich, Editor(s)

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