Results 51 to 60 of about 1,236 (164)

A 3-D Projection Model for X-ray Dark-field Imaging [PDF]

open access: yes, 2019
Talbot-Lau X-ray phase-contrast imaging is a novel imaging modality, which provides not only an X-ray absorption image, but also additionally a differential phase image and a dark-field image. The dark-field image is related to small angle scattering and
Anton, Gisela   +6 more
core   +3 more sources

Implementing dark-field contrast imaging in computer tomography with simple setup Talbot-Lau-Interferometer

open access: yese-Journal of Nondestructive Testing

Josephine Gutekunst   +4 more
doaj   +1 more source

Nuclear emulsions for the detection of micrometric-scale fringe patterns: an application to positron interferometry [PDF]

open access: yes, 2018
Nuclear emulsions are capable of very high position resolution in the detection of ionizing particles. This feature can be exploited to directly resolve the micrometric-scale fringe pattern produced by a matter-wave interferometer for low energy ...
Aghion, S.   +10 more
core   +2 more sources

Flexible X-ray Talbot-Lau interferometer and its theory

open access: yesOptics Express
X-ray Talbot-Lau interferometer, offering multi-contrast for the imaged objects, has shown powerful capacity in imaging biological soft tissues, low density materials, etc. However, the length of the system is constant, which limits its applications. Here, we establish a new X-ray Talbot-Lau interferometer theory to achieve a flexible phase contrast ...
Zhao Wu   +11 more
openaire   +1 more source

An electron Talbot interferometer

open access: yes, 2008
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.
Alexander D Cronin   +8 more
core   +1 more source

A scalable optical detection scheme for matter wave interferometry

open access: yes, 2006
Imaging of surface adsorbed molecules is investigated as a novel detection method for matter wave interferometry with fluorescent particles. Mechanically magnified fluorescence imaging turns out to be an excellent tool for recording quantum interference ...
Alexander Stibor   +13 more
core   +1 more source

Decoherence of matter waves by thermal emission of radiation

open access: yes, 2004
Emergent quantum technologies have led to increasing interest in decoherence - the processes that limit the appearance of quantum effects and turn them into classical phenomena.
Anton Zeilinger   +33 more
core   +1 more source

A nanofabricated, monolithic, path-separated electron interferometer [PDF]

open access: yes, 2016
We report a self-aligned, monolithic electron interferometer, consisting of two 45 nm thick silicon layers separated by 20 $\mu$m. This interferometer was fabricated from a single crystal silicon cantilever on a transmission electron microscope grid by ...
Agarwal, Akshay   +4 more
core   +2 more sources

Full quantum mechanical analysis of atomic three-grating Mach-Zehnder interferometry

open access: yes, 2015
Atomic three-grating Mach-Zehnder interferometry constitutes an important tool to probe fundamental aspects of the quantum theory. There is, however, a remarkable gap in the literature between the oversimplified models and robust numerical simulations ...
Bozic, M., Davidovic, M., Sanz, A. S.
core   +1 more source

Modeling vibrations of a tiled Talbot-Lau interferometer on a clinical CT system

open access: yes, 2022
<p>X-ray computed tomography (CT) is an invaluable imaging technique for non-invasive medical diagnosis. However, for soft tissue in the human body the difference in attenuation is inherently small. Grating-based X-ray phase-contrast is a relatively novel imaging method which detects additional interaction mechanisms between photons and matter ...
Franz Pfeiffer   +7 more
openaire   +1 more source

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