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  • International Union of Crystallography (IUCr)  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Wet-etched diffractive lenses for hard X-rays (2001)
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 8 (2001), S. 1054-1055 
    Details
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A method for the fabrication of linear transmission Fresnel zone plates for X-rays in the 8–15 keV photon energy range is presented. The diffractive elements are generated by electron-beam lithography and chemical wet etching of 〈110〉-oriented silicon membrane substrates. Diffractive structures with aspect ratios of more than 30 for 300 nm-wide structures were obtained. The diffraction efficiency of such a lens was measured for 13.3 keV radiation to be 20%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0909049501002746
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  • 2
    Electronic Resource
    Electronic Resource
    X-ray magnetic reflectometry using circularly polarized radiation (1998)
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 5 (1998), S. 998-1000 
    Details
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Magnetic reflectometry experiments have been performed in the X-ray range at the L2,3 edges of rhodium. What makes these experiments original is the insertion of a very compact double-bounce reflectometer upstream of the monochromator. This configuration makes full use of the high polarization rate of the helical undulator source. This advantage is reflected in the high quality of the data obtained after only a few accumulations. It is also shown that, by properly selecting the angle of incidence, one may obtain experimental differential X-ray reflectivity spectra dominated either by the dispersion or the absorption terms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0909049597016099
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