X-ray phase imaging based on Hartmann Wavefront Sensor for applications on the study of neurodegenerative diseases

GB Provinciali - 2022 - theses.hal.science
The aim of this PhD thesis is to develop the technic of X-ray phase imaging with Hartmann
wavefront sensor for various applications and to compare this new system against well …

High-sensitivity x-ray phase imaging system based on a hartmann wavefront sensor

G Begani Provinciali, M Piponnier, L Oudjedi… - Condensed …, 2021 - mdpi.com
The Hartman wavefront sensor can be used for X-ray phase imaging with high angular
resolution. The Hartmann sensor is able to retrieve both the phase and absorption from a …

Four-type phase-contrast X-ray imaging at SAGA Light Source

A Yoneyama, R Baba, TT Lwin… - Journal of Physics …, 2022 - iopscience.iop.org
Phase-contrast X-ray imaging (Phase imaging), which uses X-ray phase-shift caused by
passing through a sample, is a powerful tool for non-destructive three-dimensional …

Modelling of phase contrast imaging with x-ray wavefront sensor and partial coherence beams

G Begani Provinciali, A Cedola, OL Rochefoucauld… - Sensors, 2020 - mdpi.com
The Hartmann wavefront sensor is able to measure, separately and in absolute, the real δ
and imaginary part β of the X-ray refractive index. While combined with tomographic setup …

Spectral propagation-based x-ray phase-contrast imaging

F Schaff, KS Morgan, DM Paganin… - Developments in X …, 2021 - spiedigitallibrary.org
Propagation-based imaging is an X-ray phase-contrast method that does not require any
additional optical elements in the imaging system. Instead, phase-contrast effects are …

Relationships between smooth-and small-phase conditions in X-ray phase-contrast imaging

D Shi, MA Anastasio - IEEE Transactions on Medical Imaging, 2009 - ieeexplore.ieee.org
We analyze some relationships between the small-and smooth-phase conditions in
propagation-based X-ray phase-contrast imaging. Although these conditions are generally …

Simultaneous wavefront and 3D tomographic reconstructions for phase imaging using Hartmann sensor

E Barjou, F Mastropietro, B Barbrel… - Medical Imaging …, 2023 - spiedigitallibrary.org
X-ray absorption imaging is used in the medical field since a long time, but recent advance
in phase-contrast imaging made it feasible in a clinical setup. X-ray Phase-contrast imaging …

X-ray phase contrast tomography from whole organ down to single cells

M Krenkel, M Töpperwien, M Bartels… - Developments in X …, 2014 - spiedigitallibrary.org
We use propagation based hard x-ray phase contrast tomography to explore the three
dimensional structure of neuronal tissues from the organ down to sub-cellular level, based …

Phase-Contrast Tomography with X-ray Hartmann wavefront sensor

GB Provinciali, A Cedola… - … Conference on X …, 2021 - spiedigitallibrary.org
The Hartmann wavefront sensor is able to measure, separately and in absolute, the real δ
and imaginary parts β of the X-ray refractive index. While combined with tomographic setup …

Nonlinear approaches for phase retrieval in the Fresnel region for hard X-ray imaging

VD Ion - 2013 - theses.hal.science
The development of highly coherent X-ray sources offers new possibilities to image
biological structures at different scales exploiting the refraction of X-rays. The coherence …