Image Quality Analysis of X-ray Grating Interferometer Using Integrating-bucket Method
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.
Document Type: Research Article
Affiliations: 1: Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China 2: Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China 3: National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China 4: Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
Publication date: March 1, 2020
This article was made available online on February 7, 2020 as a Fast Track article with title: "Image Quality Analysis of X-ray Grating Interferometer Using Integrating-bucket Method".
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