X-ray pulse wavefront metrology using speckle tracking
نویسندگان
چکیده
منابع مشابه
X-ray pulse wavefront metrology using speckle tracking.
An instrument allowing the quantitative analysis of X-ray pulsed wavefronts is presented and its processing method explained. The system relies on the X-ray speckle tracking principle to accurately measure the phase gradient of the X-ray beam from which beam optical aberrations can be deduced. The key component of this instrument, a semi-transparent scintillator emitting visible light while tra...
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In situ metrology overcomes many of the limitations of existing metrology techniques and is capable of exceeding the performance of present-day optics. A novel technique for precisely characterizing an X-ray bimorph mirror and deducing its two-dimensional (2D) slope error map is presented. This technique has also been used to perform fast optimization of a bimorph mirror using the derived 2D pi...
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X-ray imaging techniques that capture variations in the x-ray phase can yield higher contrast images with lower x-ray dose than is possible with conventional absorption radiography. However, the extraction of phase information is often more difficult than the extraction of absorption information and requires a more sophisticated experimental arrangement. We here report a method for three-dimens...
متن کاملSpeckle Metrology
5.1.1 Vibration Detection in the Presence of a Reference Wave 5.1.2 Vibration Detection without a Reference Field 5.2 Deformation Measurement by Speckle Interferometry 5.3 In-Plane Oscillations by Image Plane Recording 5.3.1 Theory 5.3.2 Time-Average Exposures of in-Plane Oscillations 5.3.3 Display of Young's Fringes 5.3.4 Comparison of Fringe Shapes for Different Motions 5.4 Tilt Analysis by F...
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A wavefront metrology setup based on the X-ray grating interferometry technique for spatially resolved, quantitative, in situ and at-wavelength measurements of the wavefront at synchrotron radiation and hard X-ray free-electron laser beamlines is reported. Indeed, the ever-increasing demands on the optical components to preserve the wavefront shape and the coherence of the delivered X-ray beam ...
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ژورنال
عنوان ژورنال: Journal of Synchrotron Radiation
سال: 2015
ISSN: 1600-5775
DOI: 10.1107/s1600577515005433