Results 31 to 40 of about 655 (123)

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
doaj   +1 more source

A four-grating interferometer for x-ray multi-contrast imaging. [PDF]

Med Phys
Background: X-ray multi-contrast imaging with gratings provides a practical method to detect differential phase and dark-field contrast images in addition to the x-ray absorption image traditionally obtained in laboratory or hospital environments ...
Miao H, Williams JC, Josell D.
europepmc   +2 more sources

Robust Sample Information Retrieval in Dark-Field Computed Tomography with a Vibrating Talbot-Lau Interferometer

, 2023
X-ray computed tomography (CT) is a crucial tool for non-invasive medical diagnosis that uses differences in materials' attenuation coefficients to generate contrast and provide 3D information.
Franz Pfeiffer (13512137), Jakob Haeusele (14316876), Thomas Koehler (13512134), Nikolai Gustschin (13511996), Tobias Lasser (13526709), Clemens Schmid (13525891), Manuel Viermetz (13511779)   +6 more
core   +1 more source

Progress toward a large-scale ion Talbot-Lau interferometer

, 2017
International audienceThe Talbot-Lau interferometer is a proven tool to perform measurements in the near-field regime. It has been extensively used for investigating the wave nature of electrons, atoms, and complex organic molecules.
Oberthaler, Markus K., Andrea Demetrio, Müller, Simon R., Simon R. Müller, Lansonneur, Pierre, Markus K. Oberthaler, Pierre Lansonneur, Demetrio, Andrea   +7 more
core   +1 more source

Laboratory-based X-ray phase-imaging scanner using Talbot-Lau interferometer for non-destructive testing

, 2021
An X-ray Talbot-Lau interferometer scanning setup consisting of three transmission gratings, a laboratory-based X-ray source that emits X-rays vertically, and an image detector on the top has been developed for the application of X-ray phase imaging to ...
Nonoguchi, Masahiro, Kuribayashi, Masaru, Koike, Takafumi, Bachche, Shivaji, Kageyama, Masashi, Kato, Koichi, Momose, Atsushi   +6 more
core   +1 more source

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

, 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   +1 more source

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
doaj   +1 more source

Realisierung eines Talbot-Lau-Interferometers an Mikrofokusröhren für materialwissenschaftliche Tomografieanwendungen

, 2016
Durch Verwendung eines Talbot-Lau Interferometers können in der Computertomografie Aufnahmen in Phasen- und Dunkelfeldkontrast dargestellt werden. Dies wurde bereits anhand mehrerer Anwendungen im medizinischen Bereich demonstriert.
Maisenbacher, Jens Thomas
core   +1 more source

Decomposing Magnetic Dark-Field Contrast in Spin Analyzed Talbot-Lau Interferometry: A Stern-Gerlach Experiment without Spatial Beam Splitting

, 2021
We have recently shown how a polarized beam in Talbot-Lau interferometric imaging can be used to analyze strong magnetic fields through the spin dependent differential phase effect at field gradients.
Makowska, Malgorzata G. (author), Makowska, Malgorzata G., Plomp, Jeroen, Valsecchi, Jacopo, Thijs, Michel A., Plomp, J. (author), Kim, Youngju (author), Strobl, Markus (author), Grünzweig, Christian, Valsecchi, Jacopo (author), Grünzweig, Christian (author), Piegsa, Florian M. (author), Lee, Seung Wook, Strobl, Markus, Thijs, M.A. (author), Lee, Seung Wook (author), Thijs, M.A., Plomp, J., Piegsa, Florian M., Kim, Youngju   +19 more
core   +1 more source

Non-iterative Directional Dark-field Tomography

Scientific Reports, 2017
Dark-field imaging is a scattering-based X-ray imaging method that can be performed with laboratory X-ray tubes. The possibility to obtain information about unresolvable structures has already seen a lot of interest for both medical and material science ...
Florian Schaff, Friedrich Prade, Yash Sharma, Martin Bech, Franz Pfeiffer   +4 more
doaj   +1 more source