Počet záznamů: 1  

High-resolution high-efficiency X-ray imaging system based on the in-line Bragg magnifier and the Medipix detector

  1. 1. 0391972 - FZU-D 2014 RIV DK eng J - Článek v odborném periodiku
    Vagovič, P. - Korytár, D. - Cecilia, A. - Hamann, E. - Švéda, L. - Pelliccia, D. - Hartwig, J. - Zápražný, Z. - Oberta, Peter - Dolbnya, I. - Shawney, K. - Flechsig, U. - Fiederle, M. - Baumbach, T.
    High-resolution high-efficiency X-ray imaging system based on the in-line Bragg magnifier and the Medipix detector.
    Journal of Synchrotron Radiation. Roč. 20, č. 1 (2013), s. 153-159 ISSN 0909-0495.
    [International Workshop on X-Ray Damage to Biological Crystalline Samples /7./. Oxfordshire, 14.03.2012-16.03.2012]
    Grant CEP: GA MPO FR-TI1/412
    Institucionální podpora: RVO:68378271
    Klíčová slova: Bragg magnifie * germanium * holography * high resolution * in-line * X-ray imaging
    Kód oboru RIV: BH - Optika, masery a lasery
    Impakt faktor: 3.022, rok: 2013
    http://onlinelibrary.wiley.com/doi/10.1107/S0909049512044366/pdf

    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.
    Trvalý link: http://hdl.handle.net/11104/0220966