Fabio A. Vittoria
YOU?
Author Swipe
View article: Advanced three-dimensional X-ray imaging unravels structural development of the human thymus compartments
Advanced three-dimensional X-ray imaging unravels structural development of the human thymus compartments Open
View article: Enhanced detection of threat materials by dark-field x-ray imaging combined with deep neural networks
Enhanced detection of threat materials by dark-field x-ray imaging combined with deep neural networks Open
View article: Neutron personal dosimetry using polyallyl diglycol carbonate (PADC): Current status, best practices and proposed research
Neutron personal dosimetry using polyallyl diglycol carbonate (PADC): Current status, best practices and proposed research Open
View article: Technical Note: Practical implementation strategies of cycloidal computed tomography
Technical Note: Practical implementation strategies of cycloidal computed tomography Open
Purpose Cycloidal computed tomography is a novel imaging concept which combines a highly structured x‐ray beam, offset lateral under‐sampling, and mathematical data recovery to obtain high‐resolution images efficiently and flexibly, even w…
View article: Study on the uncertainty of passive area dosimetry systems for environmental radiation monitoring in the framework of the EMPIR “Preparedness” project
Study on the uncertainty of passive area dosimetry systems for environmental radiation monitoring in the framework of the EMPIR “Preparedness” project Open
One of the objectives of the EMPIR project 16ENV04 "Preparedness" is the harmonization of methodologies for the measurement of doses with passive dosimetry systems for environmental radiation monitoring in the aftermath of a nuclear or rad…
View article: Cycloidal Computed Tomography
Cycloidal Computed Tomography Open
X-ray computed tomography has emerged as a versatile tool in biology, biomedicine, and materials science, providing high-resolution three-dimensional images. However, high-resolution imaging typically requires the use of specialized source…
View article: An experimental approach to optimising refraction sensitivity for lab-based edge illumination phase contrast set-ups
An experimental approach to optimising refraction sensitivity for lab-based edge illumination phase contrast set-ups Open
Refraction sensitivity can be optimised for differential x-ray phase contrast (XPC) imaging methods by modifying the set-up. Often, modifications involve changing source/detector parameters, propagation distances, or the design of optical …
View article: A compact system for intraoperative specimen imaging based on edge illumination x-ray phase contrast
A compact system for intraoperative specimen imaging based on edge illumination x-ray phase contrast Open
A significant number of patients receiving breast-conserving surgery (BCS) for invasive carcinoma and ductal carcinoma in situ (DCIS) may need reoperation following tumor-positive margins from final histopathology tests. All current intrao…
View article: Flexible solutions for lab-based phase contrast and dark field CT and micro-CT
Flexible solutions for lab-based phase contrast and dark field CT and micro-CT Open
Phase-based (PB) x-ray imaging (XRI) methods have grown in importance over recent years, and it can probably be argued that the majority of micro-CT experiments at synchrotrons include phase effects in some form or fashion. A comparable if…
View article: Theoretical Framework for Spatial Resolution in Edge-Illumination X-Ray Tomography
Theoretical Framework for Spatial Resolution in Edge-Illumination X-Ray Tomography Open
In edge-illumination x-ray tomography, which yields phase contrast in addition to attenuation contrast, spatial resolution is decoupled from the size of the x-ray source's focal spot, and of the detector pixels, as the primary x-ray beam i…
View article: Retrieval of weak x-ray scattering using edge illumination
Retrieval of weak x-ray scattering using edge illumination Open
X-ray phase contrast imaging provides additional modes of image contrast compared to conventional attenuation-based x-ray imaging, thus providing additional structural and functional information about the sample. The edge-illumination (EI)…
View article: Single-Shot X-ray Phase Retrieval through Hierarchical Data Analysis and a Multi-Aperture Analyser
Single-Shot X-ray Phase Retrieval through Hierarchical Data Analysis and a Multi-Aperture Analyser Open
A multi-aperture analyser set-up was recently developed for X-ray phase contrast imaging and tomography, simultaneously attaining a high sensitivity and wide dynamic range. We present a single-shot image retrieval algorithm in which differ…
View article: X-ray phase-contrast tomography of breast tissue specimen with a multi-aperture analyser synchrotron set-up
X-ray phase-contrast tomography of breast tissue specimen with a multi-aperture analyser synchrotron set-up Open
We report on the application of the multi-aperture analyserX-ray Phase-Contrast imaging (XPCI) technique to the three-dimensional imaging of breast tissue samples. The experiment was conducted at the SYRMEP beamline (Elettra synchrotron, I…
View article: Multimodal Phase-Based X-Ray Microtomography with Nonmicrofocal Laboratory Sources
Multimodal Phase-Based X-Ray Microtomography with Nonmicrofocal Laboratory Sources Open
We present an alternative laboratory implementation of x-ray phase-contrast tomography through a beam-tracking approach. A nonmicrofocal rotating anode source is combined with a high-resolution detector and an absorbing mask to obtain atte…
View article: Recent advances in edge illumination x-ray phase-contrast tomography
Recent advances in edge illumination x-ray phase-contrast tomography Open
Edge illumination (EI) is an x-ray phase-contrast imaging technique, exploiting sensitivity to x-ray refraction to visualize features, which are often not detected by conventional absorption-based radiography. The method does not require a…
View article: Detector requirements for single mask edge illumination x-ray phase contrast imaging applications
Detector requirements for single mask edge illumination x-ray phase contrast imaging applications Open
Edge illumination (EI) is a non-interferometric X-ray phase contrast imaging (XPCI) method that has been successfully implemented with conventional polychromatic sources, thanks to its relaxed coherence requirements. Like other XPCI method…
View article: Comparing signal intensity and refraction sensitivity of double and single mask edge illumination lab-based x-ray phase contrast imaging set-ups
Comparing signal intensity and refraction sensitivity of double and single mask edge illumination lab-based x-ray phase contrast imaging set-ups Open
Double mask edge illumination (DM-EI) set-ups can detect differential phase and attenuation information from a sample. However, analytical separation of the two signals often requires acquiring two frames with inverted differential phase c…
View article: X-ray Phase-Contrast Radiography and Tomography with a Multiaperture Analyzer
X-ray Phase-Contrast Radiography and Tomography with a Multiaperture Analyzer Open
We present a multiaperture analyzer setup for performing x-ray phase contrast imaging in planar and three-dimensional modalities. The method is based on strongly structuring the x-ray beam with an amplitude modulator, before it reaches the…
View article: Simple and robust synchrotron and laboratory solutions for high-resolution multimodal X-ray phase-based imaging
Simple and robust synchrotron and laboratory solutions for high-resolution multimodal X-ray phase-based imaging Open
Edge illumination X-ray phase contrast imaging techniques are capable of quantitative retrieval of differential phase, absorption and X-ray scattering. We have recently developed a series of approaches enabling high-resolution implementati…
View article: Large field of view, fast and low dose multimodal phase-contrast imaging at high x-ray energy
Large field of view, fast and low dose multimodal phase-contrast imaging at high x-ray energy Open
View article: Edge illumination X-ray phase tomography of multi-material samples using a single-image phase retrieval algorithm
Edge illumination X-ray phase tomography of multi-material samples using a single-image phase retrieval algorithm Open
In this paper we present a single-image phase retrieval algorithm for multi-material samples, developed for the edge illumination (EI) X-ray phase contrast imaging method. The theoretical derivation is provided, along with any assumptions …
View article: Retrieving the Ultrasmall-Angle X-Ray Scattering Signal with Polychromatic Radiation in Speckle-Tracking and Beam-Tracking Phase-Contrast Imaging
Retrieving the Ultrasmall-Angle X-Ray Scattering Signal with Polychromatic Radiation in Speckle-Tracking and Beam-Tracking Phase-Contrast Imaging Open
Ultrasmall-angle x-ray scattering (USAXS) is sensitive to microstructures that are smaller than the imaging system's resolution, and therefore inaccessible via other contrast mechanisms. This comparison of two phase-contrast imaging techni…
View article: A first investigation of accuracy, precision and sensitivity of phase-based x-ray dark-field imaging
A first investigation of accuracy, precision and sensitivity of phase-based x-ray dark-field imaging Open
In the last two decades, x-ray phase contrast imaging (XPCI) has attracted attention as a potentially significant improvement over widespread and established x-ray imaging. The key is its capability to access a new physical quantity (the '…
View article: Robust phase retrieval for high resolution edge illumination x-ray phase-contrast computed tomography in non-ideal environments
Robust phase retrieval for high resolution edge illumination x-ray phase-contrast computed tomography in non-ideal environments Open
View article: Compact and cost effective lab-based edge-illumination x-ray phase contrast imaging with a structured focal spot
Compact and cost effective lab-based edge-illumination x-ray phase contrast imaging with a structured focal spot Open
We present a different implementation of the Edge Illumination (EI) X-ray Phase Contrast imaging method based on the use of multiple focal spots created through an additional x-ray mask. While this resembles directly inspired by the Talbot…
View article: Concept of contrast transfer function for edge illumination x-ray phase-contrast imaging and its comparison with the free-space propagation technique
Concept of contrast transfer function for edge illumination x-ray phase-contrast imaging and its comparison with the free-space propagation technique Open
Previous studies on edge illumination (EI) X-ray phase-contrast imaging (XPCi) have investigated the nature and amplitude of the signal provided by this technique. However, the response of the imaging system to different object spatial fre…
View article: Asymmetric masks for laboratory-based X-ray phase-contrast imaging with edge illumination
Asymmetric masks for laboratory-based X-ray phase-contrast imaging with edge illumination Open
View article: A laboratory based edge-illumination x-ray phase-contrast imaging setup with two-directional sensitivity
A laboratory based edge-illumination x-ray phase-contrast imaging setup with two-directional sensitivity Open
We report on a preliminary laboratory based x-ray phase-contrast imaging system capable of achieving two-directional phase sensitivity, thanks to the use of L-shaped apertures. We show that in addition to apparent absorption, two-direction…
View article: X–ray absorption, phase and dark–field tomography through a beam tracking approach
X–ray absorption, phase and dark–field tomography through a beam tracking approach Open
We present a development of the beam–tracking approach that allows its implementation in computed tomography. One absorbing mask placed before the sample and a high resolution detector are used to track variations in the beam intensity dis…
View article: Single-image phase retrieval using an edge illumination X-ray phase-contrast imaging setup
Single-image phase retrieval using an edge illumination X-ray phase-contrast imaging setup Open
A method is proposed which enables the retrieval of the thickness or of the projected electron density of a sample from a single input image acquired with an edge illumination phase-contrast imaging setup. The method assumes the case of a …