Results 51 to 60 of about 129 (117)

Deformable image registration of dark‐field chest radiographs for functional lung assessment

Medical Physics, Volume 52, Issue 8, August 2025.
Abstract Background Dark‐field radiography of the human chest has been demonstrated to have promising potential for the analysis of the lung microstructure and the diagnosis of respiratory diseases. However, most previous studies of dark‐field chest radiographs evaluated the lung signal only in the inspiratory breathing state.
Fabian Drexel, Vasiliki Sideri‐Lampretsa, Henriette Bast, Alexander W. Marka, Thomas Koehler, Florian T. Gassert, Daniela Pfeiffer, Daniel Rueckert, Franz Pfeiffer   +8 more
wiley   +1 more source

Immersion microlithography at 193 nm with a Talbot prism interferometer [PDF]

SPIE Proceedings, 2004
A Talbot interference immersion lithography system that uses a compact prism is presented. The use of a compact prism allows the formation of a fluid layer between the optics and the image plane, enhancing the resolution. The reduced dimensions of the system alleviate coherence requirements placed on the source, allowing the use of a compact ArF ...
Bourov, Anatoly, Fan, Yongfa, Cropanese, Frank, Lafferty, Neal, Zavyalova, Lena V., Kang, Hoyoung, Smith, Bruce W.   +6 more
openaire   +1 more source

Grating‐based x‐ray dark‐field mammography: Assessing complementary imaging information in simple cystic lesions and typical fibroadenoma

Medical Physics, Volume 52, Issue 4, Page 2145-2154, April 2025.
Abstract Background A significant proportion of false positive recalls of mammography‐screened women is due to benign breast cysts and simple fibroadenomas. These lesions appear mammographically as smooth‐shaped dense masses and require the recalling of women for a breast ultrasound to obtain complementary imaging information.
Karin Hellerhoff, Wolfgang Gottwald, Kirsten Taphorn, Daniel Berthe, Michael Braun, Kai Wagner, Sandra Resch, Dominik John, Lisa Heck, Lorenz Birnbacher, Julia Herzen, Susanne Grandl   +11 more
wiley   +1 more source

Isotope-selective high-order interferometry with large organic molecules in free fall

New Journal of Physics, 2018
Interferometry in the time domain has proven valuable for matter-wave based measurements. This concept has recently been generalized to cold molecular clusters using short-pulse standing light waves which realized photo-depletion gratings, arranged in a ...
Jonas Rodewald, Nadine Dörre, Andrea Grimaldi, Philipp Geyer, Lukas Felix, Marcel Mayor, Armin Shayeghi, Markus Arndt   +7 more
doaj   +1 more source

Temporal and spatiotemporal soliton molecules in ultrafast fibre lasers

Nanophotonics, Volume 14, Issue 6, Page 677-706, April 2025.
Abstract Ultrafast fibre lasers, characterized by ultrashort pulse duration and broad spectral bandwidth, have drawn significant attention due to their vast potential across a wide range of applications, from fundamental scientific to industrial processing and beyond.
Ding Mao, Zichuan Yuan, Ke Dai, Yue Chen, Huihui Ma, Qiang Ling, Jiancheng Zheng, Yusheng Zhang, Daru Chen, Yudong Cui, Zhipei Sun, Boris A. Malomed   +11 more
wiley   +1 more source

Breast Tumor-Like-Masses Segmentation From Scattering Images Obtained With an Ultrahigh-Sensitivity Talbot-Lau Interferometer Using Convolutional Neural Networks

IEEE Access
Segmentation of breast tumors using imaging techniques remains a critical challenge in medical diagnostics, with limitations in contrast and resolution affecting early detection.
Ionut-Cristian Ciobanu, Nicoleta Safca, Elena Anghel, Dan Popescu   +3 more
doaj   +1 more source

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

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, Masahiro Nonoguchi, Koichi Kato, Masashi Kageyama, Takafumi Koike, Masaru Kuribayashi, Atsushi Momose   +6 more
doaj   +1 more source

Thermal deformation compensation scheme to the sub‐nanometre level of a piezoelectric offset mirror for MHz repetition rate free‐electron laser

Journal of Synchrotron Radiation, Volume 32, Issue 1, Page 46-56, January 2025.
A compensation scheme has been developed to control thermal deformation of offset mirrors used in MHz repetition rate free‐electron lasers to sub‐nanometre level. This approach employs a piezoelectric deformable mirror, utilizes finite‐element analysis for simulation and post‐processing verification, and integrates a differential evolution algorithm ...
Baoning Sun, Qinming Li, Chuan Yang, Kai Hu, Zhongmin Xu, Xiaohao Dong, Weiqing Zhang, Xueming Yang   +7 more
wiley   +1 more source

Bio‐Engineering Yeast Cells Biolenses by Reshaping Intracellular Vacuoles

Advanced Optical Materials, Volume 12, Issue 18, June 26, 2024.
Achieving tunable biolens effects in single cells by altering their internal structures is feasible. Particularly, hypotonic conditions prompt reshaping of intracellular vacuoles in yeast cells. Utilizing Tomographic Phase Imaging Flow Cytometry, 3D refractive index tomograms of suspended cells are captured, thus enabling in‐depth characterizations ...
Daniele Pirone, Massimo D'Agostino, Matteo Lombini, Fausto Cortecchia, Emiliano Diolaiti, Giuseppe Mongelluzzo, Giusy Giugliano, Vittorio Bianco, Lisa Miccio, Pasquale Memmolo, Pietro Ferraro   +10 more
wiley   +1 more source

A Multicompartment Assessment of Microplastic Contamination in Semi‐remote Boreal Lakes

Environmental Toxicology and Chemistry, Volume 43, Issue 5, Page 999-1011, May 2024.
Abstract Microplastic contamination is ubiquitous across the globe, even in remote locations. Still, the sources and pathways of microplastics to such locations are largely unknown. To investigate microplastic contamination in a semi‐remote location, we measured microplastic concentrations in nine oligotrophic lakes within and around the International ...
Hayley K. McIlwraith, Minoli Dias, Diane M. Orihel, Michael D. Rennie, Anna L. Harrison, Matthew J. Hoffman, Jennifer F. Provencher, Chelsea M. Rochman   +7 more
wiley   +1 more source