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High-resolution high-efficiency X-ray imaging system based on the in-line Bragg magnifier and the Medipix detector
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SYSNO ASEP 0391972 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High-resolution high-efficiency X-ray imaging system based on the in-line Bragg magnifier and the Medipix detector Author(s) Vagovič, P. (DE)
Korytár, D. (SK)
Cecilia, A. (DE)
Hamann, E. (DE)
Švéda, L. (CZ)
Pelliccia, D. (AU)
Hartwig, J. (FR)
Zápražný, Z. (SK)
Oberta, Peter (FZU-D) RID, ORCID
Dolbnya, I. (GB)
Shawney, K. (GB)
Flechsig, U. (CH)
Fiederle, M. (DE)
Baumbach, T. (DE)Source Title Journal of Synchrotron Radiation. - : Oxford Blackwell - ISSN 0909-0495
Roč. 20, č. 1 (2013), s. 153-159Number of pages 7 s. Action International Workshop on X-Ray Damage to Biological Crystalline Samples /7./ Event date 14.03.2012-16.03.2012 VEvent location Oxfordshire Country GB - United Kingdom Event type WRD Language eng - English Country DK - Denmark Keywords Bragg magnifie ; germanium ; holography ; high resolution ; in-line ; X-ray imaging Subject RIV BH - Optics, Masers, Lasers R&D Projects FR-TI1/412 GA MPO - Ministry of Industry and Trade (MPO) Institutional support FZU-D - RVO:68378271 UT WOS 000312561300019 DOI 10.1107/S0909049512044366 Annotation The performance of a recently developed full-field X-ray micro-imaging system based on an in-line Bragg magnifier is reported. The system is composed of quasi-channel-cut crystals in combination with a Medipix single-photoncounting detector. A theoretical and experimental study of the imaging performance of the crystals–detector combination and a comparison with a standard indirect detector typically used in high-resolution X-ray imaging schemes are reported. The spatial resolution attained by our system is about 0.75 mm, limited only by the current magnification. Compared with an indirect detector system, this system features a better efficiency, signal-to-noise ratio and spatial resolution. The optimal working resolution range of this system is between 0.4 mm and 1 mm, filling the gap between transmission X-ray microscopes and indirect detectors. Applications for coherent full-field imaging of weakly absorbing samples are shown and discussed. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2014
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