34 citations · 79 across the 18 of their papers we have counts for
19 papers
On imaging capabilities of the Imaging and Medical beamline at the Australian Synchrotron
T. E. Gureyev, K. M. Pavlov, C. J. Hall +6
Several propagation-based and analyser-based X-ray phase-contrast imaging experiments with over 100 m between the imaged objects and the detector were carried out at the Imaging an…
Fast Patient-Specific Breast CT Dosimetry: 22-Fold Acceleration of Monte Carlo MGD Estimation
Amir Entezam, Ashkan Pakzad, Christopher J. Hall +9
Accurate patient-specific mean glandular dose (MGD) estimation in breast computed tomography (BCT) requires anatomically realistic models, but high-resolution patient-derived phant…
Development and Validation of Patient-Specific Monte Carlo Dosimetry for Synchrotron Breast Phase-Contrast CT
Amir Entezam, Ashkan Pakzad, Christopher J. Hall +11
This study develops and validates a patient-specific Monte Carlo (MC) dosimetry framework for propagation-based phase-contrast breast CT (BCT) at the Imaging and Medical Beamline (…
Efficiency limits in in-line imaging
Timur E. Gureyev, David M. Paganin, Harry M. Quiney
In-line phase-contrast imaging, also known as propagation-based imaging or Gabor holography, is capable of delivering significant gains in image quality, compared to attenuation-ba…
Quantum Jacobi-Davidson Method
Shaobo Zhang, Akib Karim, Harry M. Quiney +1
Computing electronic structures of quantum systems is a key task underpinning many applications in photonics, solid-state physics, and quantum technologies. This task is typically…
On optimization of Paganin's method for propagation-based X-ray phase-contrast imaging and tomography
Timur E. Gureyev, David M. Paganin, Ashkan Pakzad +1
Paganin's method for image reconstruction in propagation-based phase-contrast X-ray imaging and tomography has enjoyed broad acceptance in recent years, with over one thousand publ…
Signal-to-noise and spatial resolution in in-line imaging. 3. Optimization using a simple model
T. E. Gureyev, D. M. Paganin, H. M. Quiney
The problem of optimization of propagation-based phase-contrast imaging setups is considered in the case of projection X-ray imaging and three-dimensional tomography with phase ret…
Moments-based quantum computation of the electric dipole moment of molecular systems
Michael A. Jones, Harish J. Vallury, Manolo C. Per +2
With rapid progress being made in the development of platforms for quantum computation, there has been considerable interest in whether present-day and near-term devices can be use…
Signal-to-noise and spatial resolution in in-line imaging. 2. Phase-contrast tomography
T. E. Gureyev, D. M. Paganin, K. M. Pavlov +2
In the first part of this paper, quantitative aspects of propagation-based phase-contrast imaging (PBI) were investigated using theoretical and numerical approaches, as well as exp…
Symmetry-Checking in Band Structure Calculations on a Noisy Quantum Computer
Shaobo Zhang, Akib Karim, Harry M. Quiney +1
Band crossings in electronic band structures play an important role in determining the electronic, topological, and transport properties in solid-state systems, making them central…
Towards order of magnitude X-ray dose reduction in breast cancer imaging using phase contrast and deep denoising
Ashkan Pakzad, Robert Turnbull, Simon J. Mutch +14
Breast cancer is the most frequently diagnosed human cancer in the United States at present. Early detection is crucial for its successful treatment. X-ray mammography and digital…
Comparison of three reconstruction algorithms for low-dose phase-contrast computed tomography of the breast with synchrotron radiation
Sandro Donato, Simone Caputo, Luca Brombal +17
Three different computed tomography (CT) reconstruction algorithms: Filtered Back Projection (FBP), Unified Tomographic Reconstruction (UTR) and customized Simultaneous Algebraic R…
Young double-slit interference with single hard x-ray photons
T. E. Gureyev, C. Hall, B. Arhatari +4
Young double-slit experiments using monochromatic hard X-rays with the energy of 25 keV are presented. The experiments were performed at a synchrotron source with a distance of 110…
Signal-to-noise and spatial resolution in in-line imaging. 1. Basic theory, numerical simulations and planar experimental images
T. E. Gureyev, D. M. Paganin, H. M. Quiney
Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of in-line (propagation based) X-ray phase-contrast imaging. It is known that free-space pro…
A method for virtual optical sectioning and tomography utilizing shallow depth of field
T. E. Gureyev, H. M. Quiney, L. J. Allen
A method is proposed for high-resolution, three-dimensional reconstruction of internal structure of objects from planar transmission images. The described approach can be used with…
Dark-field signal extraction in propagation-based phase-contrast imaging
T. E. Gureyev, D. M. Paganin, B. Arhatari +4
A method for extracting the dark-field signal in propagation-based phase-contrast imaging is proposed. In the case of objects consisting predominantly of a single material, or seve…
On electron imaging of small molecules, Part I: relative roles of multiple scattering and Fresnel diffraction
T. E. Gureyev, H. M. Quiney, A. Kozlov +1
The relative roles of multiple electron scattering and in-molecule free-space propagation in transmission electron microscopy of small molecules are discussed. It is argued that wh…
On electron imaging of small molecules, Part II: tomographic reconstruction from defocus series
T. E. Gureyev, H. M. Quiney, A. Kozlov +1
A practical method utilising three-dimensional image pattern matching is proposed which, in principle, is capable of unambiguous determination of the types and positions of atoms i…
On the efficiency of computational imaging with structured illumination
T. E. Gureyev, D. M. Paganin, A. Kozlov +2
A generic computational imaging setup is considered which assumes sequential illumination of a semi-transparent object by an arbitrary set of structured illumination patterns. For…