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Deterministic Bragg Coherent Diffraction Imaging [PDF]

open access: yesScientific Reports, 2017
A deterministic variant of Bragg Coherent Diffraction Imaging is introduced in its kinematical approximation, for X-ray scattering from an imperfect crystal whose imperfections span no more than half of the volume of the crystal. This approach provides a
Konstantin M. Pavlov   +4 more
doaj   +6 more sources

High-resolution and high-sensitivity X-ray ptychographic coherent diffraction imaging using the CITIUS detector [PDF]

open access: yesJournal of Synchrotron Radiation, 2023
Ptychographic coherent diffraction imaging (PCDI) is a synchrotron X-ray microscopy technique that provides high spatial resolution and a wide field of view.
Yukio Takahashi   +12 more
doaj   +2 more sources

Mapping nanocrystal orientations via scanning Laue diffraction microscopy for multi-peak Bragg coherent diffraction imaging [PDF]

open access: yesJournal of Synchrotron Radiation, 2023
The recent commissioning of a movable monochromator at the 34-ID-C endstation of the Advanced Photon Source has vastly simplified the collection of Bragg coherent diffraction imaging (BCDI) data from multiple Bragg peaks of sub-micrometre scale samples ...
Yueheng Zhang   +12 more
doaj   +2 more sources

Complex wavefront sensing based on coherent diffraction imaging using vortex modulation [PDF]

open access: yesScientific Reports, 2021
Phase retrieval seeks to reconstruct the phase from the measured intensity, which is an ill-posed problem. A phase retrieval problem can be solved with physical constraints by modulating the investigated complex wavefront.
Rujia Li, Liangcai Cao
doaj   +2 more sources

Upgrade of the Coherent X-ray Scattering beamline at Pohang Light Source II [PDF]

open access: yesJournal of Synchrotron Radiation
The Coherent X-ray Scattering beamline at the Pohang Light Source-II was constructed in 2011 for coherent diffraction imaging and has now been upgraded in its focusing optics, diffractometer, detectors and endstation. The enhanced photon flux density and
Daseul Ham   +3 more
doaj   +2 more sources

Signal-to-noise, spatial resolution and information capacity of coherent diffraction imaging [PDF]

open access: yesIUCrJ, 2018
It is shown that the average signal-to-noise ratio (SNR) in the three-dimensional electron-density distribution of a sample reconstructed by coherent diffractive imaging cannot exceed twice the square root of the ratio of the mean total number of ...
Timur E. Gureyev   +5 more
doaj   +2 more sources

Serial coherent diffraction imaging of dynamic samples based on inter-frame continuity [PDF]

open access: yesLight: Science & Applications
Coherent diffraction imaging (CDI) provides lens-free imaging with diffraction-limited resolution and has become an important imaging modality at synchrotron facilities worldwide. The performance of current CDI approaches remains limited, particularly in
Pengju Sheng, Fucai Zhang
doaj   +2 more sources

Simultaneous Multi-Bragg Peak Coherent X-ray Diffraction Imaging

open access: yesCrystals, 2021
The simultaneous measurement of two Bragg reflections by Bragg coherent X-ray diffraction is demonstrated on a twinned Au crystal, which was prepared by the solid-state dewetting of a 30 nm thin gold film on a sapphire substrate. The crystal was oriented
Florian Lauraux   +12 more
doaj   +1 more source

Coherent XUV Multispectral Diffraction Imaging in the Microscale

open access: yesApplied Sciences, 2022
The rapid growth of nanotechnology has increased the need for fast nanoscale imaging. X-ray free electron laser (XFEL) facilities currently provide such coherent sources of directional and high-brilliance X-ray radiation.
Stylianos Petrakis   +15 more
doaj   +1 more source

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