Results 11 to 20 of about 843 (178)

Coherence evaluation and first demonstration of multi-contrast X-ray computed tomography on NanoTerasu BL09W with an X-ray Talbot interferometer [PDF]

open access: yesJournal of Synchrotron Radiation
We report on the coherence evaluation of the beamline BL09W at NanoTerasu (Tohoku University, Japan) and demonstrate X-ray multi-contrast imaging using an X-ray Talbot interferometer.
Ryosuke Ueda   +14 more
doaj   +3 more sources

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   +8 more
doaj   +3 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

An electron Talbot interferometer

open access: yesNew Journal of Physics, 2009
The Talbot effect, in which a wave imprinted with transverse periodicity reconstructs itself at regular intervals, is a diffraction phenomenon that occurs in many physical systems. Here we present the first observation of the Talbot effect for electron de Broglie waves behind a nanofabricated transmission grating.
Benjamin J Mcmorran, Alexander D Cronin
exaly   +3 more sources

The choice of an autocorrelation length in dark-field lung imaging [PDF]

open access: yesScientific Reports, 2023
Respiratory diseases are one of the most common causes of death, and their early detection is crucial for prompt treatment. X-ray dark-field radiography (XDFR) is a promising tool to image objects with unresolved micro-structures such as lungs.
Simon Spindler   +8 more
doaj   +2 more sources

Towards virtual histology with X-ray grating interferometry [PDF]

open access: yesScientific Reports, 2023
Breast cancer is the most common type of cancer worldwide. Diagnosing breast cancer relies on clinical examination, imaging and biopsy. A core-needle biopsy enables a morphological and biochemical characterization of the cancer and is considered the gold
M. Polikarpov   +16 more
doaj   +2 more sources

Spectral X-ray dark-field signal characterization from dual-energy projection phase-stepping data with a Talbot-Lau interferometer [PDF]

open access: yesScientific Reports, 2023
Material-selective analysis of spectral X-ray imaging data requires prior knowledge of the energy dependence of the observed signal. Contrary to conventional X-ray imaging, where the material-specific attenuation coefficient is usually precisely known ...
Kirsten Taphorn   +4 more
doaj   +2 more sources

Exploration of the X-ray Dark-Field Signal in Mineral Building Materials [PDF]

open access: yesJournal of Imaging, 2022
Mineral building materials suffer from weathering processes such as salt efflorescence, freeze–thaw cycling, and microbial colonization. All of these processes are linked to water (liquid and vapor) in the pore space. The degree of damage following these
Benjamin K. Blykers   +7 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

Feasibility of a gravity measurement on antimatter using a Talbot-Lau interferometer [PDF]

open access: yes, 2018
The past two decades have witnessed an increasing focus on cold antimatter physics, with the development of the Antiproton Decelerator at CERN as a supply of low-energy antiprotons.
Demetrio, Andrea
core   +3 more sources

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