☆ 4.5 Article

Grating-Based X-Ray Phase Contrast Imaging With a Polycapillary Semilens

IEEE PHOTONICS TECHNOLOGY LETTERS (2022)

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期刊

IEEE PHOTONICS TECHNOLOGY LETTERS
卷 34, 期 20, 页码 1104-1107

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2022.3203012

关键词

X-ray imaging; Gratings; Detectors; Imaging; Image reconstruction; Spatial resolution; Photonics; X-ray phase contrast imaging; X-ray grating interferometry; polycapillary optics

类别

Engineering, Electrical & Electronic Optics Physics, Applied

资金

  1. National Natural Science Foundation of China [62125504, 61827825, 61735017]
  2. Major Program of the Natural Science Foundation of Zhejiang Province [LD21F050002]
  3. Key Research and Development Program of Zhejiang Province [2020C01116]
  4. Zhejiang Laboratory [2020MC0AE01]
  5. Zhejiang Provincial Ten Thousand Plan for Young Top Talents [2020R52001]

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X-ray phase contrast imaging is an emerging imaging modality for industrial inspections and biomedical applications. In this study, a polycapillary semilens was used to improve the contrast-to-noise ratio of the reconstructed images and reduce unnecessary radiation in other areas.
X-ray phase contrast imaging (XPCI) is an emerging imaging modality for industrial inspections and biomedical applications. A polycapillary semilens is utilized in the grating-based XPCI to reduce the imaging time or improve the image quality of the reconstructed images in this work. The proposed system is proved to be effective for improving the contrast-to-noise ratio (CNR) of the reconstructed images compared with using an aperture diaphragm in the system under the same exposure time. The polycapillary semilens concentrates the X-rays on the region of interest (ROI) of the sample, which reduces the unnecessary radiation in other areas.

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