Improving image quality in laboratory x-ray phase-contrast imaging

2017 ◽  
Author(s):  
F. De Marco ◽  
M. Marschner ◽  
L. Birnbacher ◽  
M. Viermetz ◽  
P. Noël ◽  
...  
2020 ◽  
Vol 64 (2) ◽  
pp. 20503-1-20503-5
Author(s):  
Faiz Wali ◽  
Shenghao Wang ◽  
Ji Li ◽  
Jianheng Huang ◽  
Yaohu Lei ◽  
...  

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.


Author(s):  
Amber L. Dagel ◽  
R. Derek West ◽  
Ryan N. Goodner ◽  
Steven M. Grover ◽  
Collin J. C. Epstein ◽  
...  

2011 ◽  
Vol 19 (23) ◽  
pp. 23460 ◽  
Author(s):  
Xue-jun Guo ◽  
Xiao-lin Liu ◽  
Chen Ni ◽  
Bo Liu ◽  
Shi-ming Huang ◽  
...  

Author(s):  
Jianheng Huang ◽  
Yaohu Lei ◽  
Xin Liu ◽  
Jinchuan Guo ◽  
Ji Li ◽  
...  

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