Analysis of a silicon comb structure using an inverse Talbot–Lau neutron grating interferometer [PDF]
Scientific Reports, 2022 We describe an inverse Talbot–Lau neutron grating interferometer that provides an extended autocorrelation length range for quantitative dark-field imaging.
Youngju Kim +7 more
doaj +4 more sources
Laboratory-based X-ray phase-imaging scanner using Talbot-Lau interferometer for non-destructive testing [PDF]
Scientific Reports, 2017 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 ...
Shivaji Bachche +6 more
doaj +6 more sources
Spectral X-ray dark-field signal characterization from dual-energy projection phase-stepping data with a Talbot-Lau interferometer [PDF]
Scientific 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
Decoherence in a Talbot Lau interferometer: the influence of molecular scattering [PDF]
Applied Physics B, 2003 We study the interference of C70 fullerenes in a Talbot-Lau interferometer with a large separation between the diffraction gratings. This permits the observation of recurrences of the interference contrast both as a function of the de Broglie wavelength ...
A. Zeilinger +23 more
core +3 more sources
The choice of an autocorrelation length in dark-field lung imaging [PDF]
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 +8 more
doaj +2 more sources
Theory of decoherence in a matter wave Talbot-Lau interferometer [PDF]
Physical Review A, 2004 We present a theoretical framework to describe the effects of decoherence on matter waves in Talbot-Lau interferometry. Using a Wigner description of the stationary beam the loss of interference contrast can be calculated in closed form.
A. Sommerfeld +20 more
core +2 more sources
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 +4 more
doaj +2 more sources
Towards virtual histology with X-ray grating interferometry [PDF]
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 +16 more
doaj +2 more sources
Fabrication of X-ray absorption gratings by centrifugal deposition of bimodal tungsten particles in high aspect ratio silicon templates [PDF]
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 +4 more
doaj +2 more sources
Quantifying grating defects in X-ray Talbot-Lau interferometry through a comparative study of two fabrication techniques [PDF]
Scientific ReportsThe performance of an X-ray grating interferometry system depends on the geometry and quality of the gratings. Fabrication of micrometer-pitch high-aspect-ratio gold gratings, which are essential for measuring small refraction angles at higher energies ...
Alexandre Pereira +8 more
doaj +2 more sources