Results 11 to 20 of about 655 (123)

Improved Reconstruction Technique for Moiré Imaging Using an X-Ray Phase-Contrast Talbot–Lau Interferometer

open access: yesJournal of Imaging, 2018
X-ray phase-contrast imaging is a promising method for medical imaging and non-destructive testing. Information about the attenuation, small-angle scattering and phase-shifting properties of an object can be gained simultaneously in three image ...
Maria Seifert   +2 more
exaly   +5 more sources

A Wigner Function Approach to Coherence in a Talbot-Lau Interferometer

open access: yesAtoms, 2016
Using a thermal gas, we model the signal of a trapped interferometer. This interferometer uses two short laser pulses, separated by time T, which act as a phase grating for the matter waves.
Eric Imhof
exaly   +4 more sources

Phase imaging of irradiated foils at the OMEGA EP facility using phase-stepping X-ray Talbot–Lau deflectometry [PDF]

open access: yesHigh Power Laser Science and Engineering, 2023
Diagnosing the evolution of laser-generated high energy density (HED) systems is fundamental to develop a correct understanding of the behavior of matter under extreme conditions.
G. Pérez-Callejo   +12 more
doaj   +2 more sources

Moiré artifact reduction in grating interferometry using multiple harmonics and total variation regularization [PDF]

open access: yesScientific Reports
X-ray interferometry is an emerging imaging modality with a wide variety of potential clinical applications, including lung imaging. A grating interferometer uses a diffraction grating to produce a periodic interference pattern and measures how a patient
Hunter C. Meyer   +9 more
doaj   +2 more sources

Comparison of Thermal Neutron and Hard X-ray Dark-Field Tomography [PDF]

open access: yesJournal of Imaging, 2020
High visibility (0.56) neutron-based multi-modal imaging with a Talbot–Lau interferometer at a wavelength of 1.6 Å is reported. A tomography scan of a strongly absorbing quartz geode sample was performed with both the neutron and an X-ray grating ...
Alex Gustschin   +6 more
doaj   +2 more sources

Retrieval of 3D information in X-ray dark-field imaging with a large field of view [PDF]

open access: yesScientific Reports, 2021
X-ray dark-field imaging is a widely researched imaging technique, with many studies on samples of very different dimensions and at very different resolutions.
Jana Andrejewski   +10 more
doaj   +2 more sources

From classical xenon fringes to hydrogen interferometry [PDF]

open access: yesNew Journal of Physics, 2020
A setup with three equally spaced transmission gratings can be described as a moiré deflectometer in the classical regime and as a Talbot–Lau interferometer in the quantum regime.
Simon R Müller   +2 more
doaj   +2 more sources

Ultrafast sub-nanometer matter-wave temporal Talbot effect [PDF]

open access: yesNew Journal of Physics, 2021
The coherent manipulation of the electron wavefunction at the atomic spatial and temporal scales is the fundamental breakthrough underlying far-reaching ultrafast phenomena as high-order harmonic radiation and attosecond pulse generation.
Ana García-Cabrera   +2 more
doaj   +2 more sources

Nanoparticle Interferometer by Throw and Catch [PDF]

open access: yesAtoms
Matter wave interferometry with increasingly larger masses could pave the way to understanding the nature of wavefunction collapse, the quantum to classical transition, or even how an object in a spatial superposition interacts with its gravitational ...
Jakub Wardak   +4 more
doaj   +2 more sources

Implementation of a Talbot-Lau interferometer in a clinical-like c-arm setup: A feasibility study. [PDF]

open access: yesSci Rep, 2018
X-ray grating-based phase-contrast imaging has raised interest regarding a variety of potential clinical applications, whereas the method is feasible using a medical x-ray tube.
Horn F   +10 more
europepmc   +2 more sources

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