Contrast and resolution in direct Fresnel diffraction phase-contrast imaging with partially coherent x-ray source

2004 ◽  
Vol 75 (10) ◽  
pp. 3146-3151 ◽  
Author(s):  
Shensheng Han ◽  
Hong Yu ◽  
Jing Cheng ◽  
Chen Gao ◽  
Zhenlin Luo
Keyword(s):  
Phase Contrast ◽  
Fresnel Diffraction ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray ◽  
Partially Coherent

In-Line Phase-Contrast Imaging Using Partially Coherent Hard X-Ray

2003 ◽  
Vol 20 (2) ◽  
pp. 220-222 ◽  
Author(s):  
Yu Hong ◽  
Zhu Pin-Pin ◽  
Han Shen-Sheng ◽  
Luo Zhen-Lin ◽  
Gao Chen
Keyword(s):  
Phase Contrast ◽  
Phase Contrast Imaging ◽  
Contrast Imaging ◽  
X Ray ◽  
Partially Coherent

Image Quality Analysis of X-ray Grating Interferometer Using Integrating-bucket Method

2020 ◽  
Vol 64 (2) ◽  
pp. 20503-1-20503-5
Author(s):  
Faiz Wali ◽  
Shenghao Wang ◽  
Ji Li ◽  
Jianheng Huang ◽  
Yaohu Lei ◽  
...  
Keyword(s):  
Image Quality ◽  
Phase Contrast ◽  
Quality Analysis ◽  
Phase Contrast Imaging ◽  
Phase Image ◽  
Contrast Imaging ◽  
High Quality ◽  
Image Quality Analysis ◽  
X Ray ◽  
Grating Interferometer

Abstract Grating-based x-ray phase-contrast imaging has the potential to enhance image quality and provide inner structure details non-destructively. In this work, using grating-based x-ray phase-contrast imaging system and employing integrating-bucket method, the quantitative expressions of signal-to-noise ratios due to photon statistics and mechanical error are analyzed in detail. Photon statistical noise and mechanical error are the main sources affecting the image noise in x-ray grating interferometry. Integrating-bucket method is a new phase extraction method translated to x-ray grating interferometry; hence, its image quality analysis would be of great importance to get high-quality phase image. The authors’ conclusions provide an alternate method to get high-quality refraction signal using grating interferometer, and hence increases applicability of grating interferometry in preclinical and clinical usage.

Numerical analysis of shift error in X-ray phase contrast imaging for large field of view

2017 ◽  
Vol 34 (1) ◽  
pp. 8
Author(s):  
Jianheng Huang ◽  
Yaohu Lei ◽  
Xin Liu ◽  
Jinchuan Guo ◽  
Ji Li ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Phase Contrast ◽  
Field Of View ◽  
Phase Contrast Imaging ◽  
Large Field ◽  
Contrast Imaging ◽  
X Ray
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