scholarly journals Principles of Different X-ray Phase-Contrast Imaging: A Review

2021 ◽  
Vol 11 (7) ◽  
pp. 2971
Author(s):  
Siwei Tao ◽  
Congxiao He ◽  
Xiang Hao ◽  
Cuifang Kuang ◽  
Xu Liu
Keyword(s):  
Biological Samples ◽  
Phase Contrast ◽  
Recent Progress ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray ◽  
X Ray Imaging ◽  
Internal Structures ◽  
X Ray Absorption ◽  
Made In

Numerous advances have been made in X-ray technology in recent years. X-ray imaging plays an important role in the nondestructive exploration of the internal structures of objects. However, the contrast of X-ray absorption images remains low, especially for materials with low atomic numbers, such as biological samples. X-ray phase-contrast images have an intrinsically higher contrast than absorption images. In this review, the principles, milestones, and recent progress of X-ray phase-contrast imaging methods are demonstrated. In addition, prospective applications are presented.

scholarly journals Quantitative phase contrast imaging of a shock-wave with a laser-plasma based X-ray source

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
F. Barbato ◽  
S. Atzeni ◽  
D. Batani ◽  
D. Bleiner ◽  
G. Boutoux ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Phase Contrast ◽  
Plastic Material ◽  
Plasma Source ◽  
Phase Contrast Imaging ◽  
Small Scale ◽  
Contrast Imaging ◽  
X Ray ◽  
Clear Identification ◽  
X Ray Absorption

AbstractX-ray phase contrast imaging (XPCI) is more sensitive to density variations than X-ray absorption radiography, which is a crucial advantage when imaging weakly-absorbing, low-Z materials, or steep density gradients in matter under extreme conditions. Here, we describe the application of a polychromatic X-ray laser-plasma source (duration ~0.5 ps, photon energy >1 keV) to the study of a laser-driven shock travelling in plastic material. The XPCI technique allows for a clear identification of the shock front as well as of small-scale features present during the interaction. Quantitative analysis of the compressed object is achieved using a density map reconstructed from the experimental data.

Design, development and first experiments on the X-ray imaging beamline at Indus-2 synchrotron source RRCAT, India

2015 ◽  
Vol 22 (6) ◽  
pp. 1531-1539 ◽  
Author(s):  
A. K. Agrawal ◽  
B. Singh ◽  
Y. S. Kashyap ◽  
M. Shukla ◽  
P. S. Sarkar ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Imaging Techniques ◽  
Phase Contrast Imaging ◽  
Design Development ◽  
Contrast Imaging ◽  
Synchrotron Source ◽  
Full Field ◽  
X Ray ◽  
X Ray Imaging ◽  
Micro Tomography

A full-field hard X-ray imaging beamline (BL-4) was designed, developed, installed and commissioned recently at the Indus-2 synchrotron radiation source at RRCAT, Indore, India. The bending-magnet beamline is operated in monochromatic and white beam mode. A variety of imaging techniques are implemented such as high-resolution radiography, propagation- and analyzer-based phase contrast imaging, real-time imaging, absorption and phase contrast tomographyetc. First experiments on propagation-based phase contrast imaging and micro-tomography are reported.

X-ray phase contrast imaging of metallized and non-metallized biological samples

2006 ◽  
Vol 16 (3) ◽  
pp. 172-178
Author(s):  
Pascal Monnin ◽  
Ruslan Hlushchuk ◽  
Valentin Djonov ◽  
Reto Meuli ◽  
Jean-François Valley ◽  
...  
Keyword(s):  
Biological Samples ◽  
Phase Contrast ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray

The feasibility of utilizing the mid-energy in-line phase-contrast imaging system in the breast x-ray imaging

2020 ◽  
Author(s):  
Farid H. Omoumi ◽  
Muhammad U. Ghani ◽  
Molly D. Wong ◽  
Yuchen Qiu ◽  
Yuhua Li ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Imaging System ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray ◽  
X Ray Imaging

scholarly journals X-Ray Phase-Contrast Imaging with Three 2D Gratings

2008 ◽  
Vol 2008 ◽  
pp. 1-8 ◽  
Author(s):  
Ming Jiang ◽  
Christopher Lee Wyatt ◽  
Ge Wang
Keyword(s):  
Numerical Simulation ◽  
Phase Contrast ◽  
Phase Retrieval ◽  
Phase Contrast Imaging ◽  
Talbot Effect ◽  
Contrast Imaging ◽  
Preclinical Imaging ◽  
X Ray ◽  
X Ray Imaging ◽  
Contrast Mechanism

X-ray imaging is of paramount importance for clinical and preclinical imaging but it is fundamentally restricted by the attenuation-based contrast mechanism, which has remained essentially the same since Roentgen's discovery a century ago. Recently, based on the Talbot effect, groundbreaking work was reported using 1D gratings for X-ray phase-contrast imaging with a hospital-grade X-ray tube instead of a synchrotron or microfocused source. In this paper, we report an extension using 2D gratings that reduces the imaging time and increases the accuracy and robustness of phase retrieval compared to current grating-based phase-contrast techniques. Feasibility is demonstrated via numerical simulation.

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