Results 21 to 30 of about 129 (117)

Development of x-ray phase tomographic microscope based on Talbot interferometer at BL37XU, SPring-8

AIP Advances, 2020
An x-ray phase tomographic microscope has been developed by optimizing the optical system for 9-keV synchrotron x rays at BL37XU, SPring-8, Japan. The system consists of a full-field x-ray imaging microscope and a Talbot interferometer.
Hidekazu Takano, Yanlin Wu, Masato Hoshino, Karol Vegso, Koh Hashimoto, Koichi Matsuo, Atsushi Momose   +6 more
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Comparison of Thermal Neutron and Hard X-ray Dark-Field Tomography

Journal 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, Tobias Neuwirth, Alexander Backs, Manuel Viermetz, Nikolai Gustschin, Michael Schulz, Franz Pfeiffer   +6 more
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A momentum filter for atomic gas

New Journal of Physics, 2013
We propose and demonstrate a momentum filter for atomic gas-based on a designed Talbot–Lau interferometer. It consists of two identical optical standing-wave pulses separated by a delay equal to odd multiples of the half Talbot time.
Wei Xiong, Xiaoji Zhou, Xuguang Yue, Yueyang Zhai, Xuzong Chen   +4 more
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Improved Reconstruction Technique for Moiré Imaging Using an X-Ray Phase-Contrast Talbot–Lau Interferometer

Journal 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, Michael Gallersdörfer, Veronika Ludwig, Max Schuster, Florian Horn, Georg Pelzer, Jens Rieger, Thilo Michel, Gisela Anton   +8 more
doaj   +1 more source

Fabrication of X-ray absorption gratings by centrifugal deposition of bimodal tungsten particles in high aspect ratio silicon templates

Scientific Reports, 2022
Grating-based X-ray imaging employs high aspect ratio absorption gratings to generate contrast induced by attenuating, phase-shifting, and small-angle scattering properties of the imaged object.
Simon Pinzek, Alex Gustschin, Nikolai Gustschin, Manuel Viermetz, Franz Pfeiffer   +4 more
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The choice of an autocorrelation length in dark-field lung imaging

Scientific 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, Dominik Etter, Michał Rawlik, Maxim Polikarpov, Lucia Romano, Zhitian Shi, Konstantins Jefimovs, Zhentian Wang, Marco Stampanoni   +8 more
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Phase-Contrast and Dark-Field Imaging

Journal of Imaging, 2018
Very early, in 1896, Wilhelm Conrad Röntgen, the founding father of X-rays, attempted to measure diffraction and refraction by this new kind of radiation, in vain. Only 70 years later, these effects were measured by Ulrich Bonse and Michael Hart who
Simon Zabler
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Towards virtual histology with X-ray grating interferometry

Scientific 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, J. Vila-Comamala, Z. Wang, A. Pereira, S. van Gogh, C. Gasser, K. Jefimovs, L. Romano, Z. Varga, K. Lång, M. Schmeltz, S. Tessarini, M. Rawlik, E. Jermann, S. Lewis, W. Yun, M. Stampanoni   +16 more
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Exploration of the X-ray Dark-Field Signal in Mineral Building Materials

Journal 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, Caori Organista, Matias Kagias, Federica Marone, Marco Stampanoni, Matthieu N. Boone, Veerle Cnudde, Jan Aelterman   +7 more
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Retrieval of 3D information in X-ray dark-field imaging with a large field of view

Scientific 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, Fabio De Marco, Konstantin Willer, Wolfgang Noichl, Theresa Urban, Manuela Frank, Alex Gustschin, Pascal Meyer, Thomas Koehler, Franz Pfeiffer, Julia Herzen   +10 more
doaj   +1 more source