منابع مشابه
Sharp-focusing Bragg-Fresnel zone plate with Laue diffraction geometry.
The impact of decreased zone height on the focal properties of hard X-ray Bragg-Fresnel zone plates has been studied by numerical simulation. Decreased zone height allows for smaller zone widths and, although the efficiency of the lens is decreased, the signal-to-background ratio in the focal plane of the lens remains at a comparatively high level. This is distinct from an analogous case of ord...
متن کاملFocusing with multilayer Laue lenses
1DESY, Notkestr. 85, 22607 Hamburg, Germany, 2CFEL at DESY, Notkestr. 85, 22607 Hamburg, Germany, 3Institute of Experimental Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany, 4SLAC National Accelerator Laboratory, 2575 Sand Hill Road MS 29, Menlo Park, CA 94025, USA, 5Faculty of Physics, University of Bialystok, ul. Lipowa 41, 15-424 Bialystok, Poland, 6European XFEL...
متن کاملPinhole Zone Plate Lens for Ultrasound Focusing
The focusing capabilities of a pinhole zone plate lens are presented and compared with those of a conventional Fresnel zone plate lens. The focusing properties are examined both experimentally and numerically. The results confirm that a pinhole zone plate lens can be an alternative to a Fresnel lens. A smooth filtering effect is created in pinhole zone plate lenses, giving rise to a reduction o...
متن کاملSimulations of time-resolved x-ray diffraction in Laue geometry
A method for computer simulation of time-resolved x-ray diffraction (TRXD) in asymmetric Laue (transmission) geometry with an arbitrary propagating strain perpendicular to the crystal surface is presented. We present two case studies for possible strain generation by short-pulse laser irradiation: (i) a thermoelastic-like analytical model; (ii) a numerical model including the effects of electro...
متن کاملNanometer linear focusing of hard x rays by a multilayer Laue lens.
We report on a type of linear zone plate for nanometer-scale focusing of hard x rays, a multilayer Laue lens (MLL), produced by sectioning a multilayer and illuminating it in Laue diffraction geometry. Because of its large optical depth, a MLL spans the diffraction regimes applicable to a thin Fresnel zone plate and a crystal. Coupled wave theory calculations indicate that focusing to 5 nm or s...
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ژورنال
عنوان ژورنال: Journal of Synchrotron Radiation
سال: 2006
ISSN: 0909-0495
DOI: 10.1107/s0909049506018449