Micro cone-beam CT scanner based on X-ray polycapillary optics

Micro cone-beam CT scanner based on X-ray polycapillary optics

Citation

"Micro cone-beam CT scanner based on X-ray polycapillary optics"

Zhou La-Zhen, Xia Wen-Jing, Xu Qian-Qian, Chen Zan, Li Fang-Zuo, Liu Zhi-Guo, Sun Tian-Xi

Acta Physica Sinica, Vol. 71, No. 9 (2022) 090701

DOI: 10.7498/aps.71.20212195

Keywords

  • Micro-CBCT
  • X-ray Polycapillary Optics (PFXRL)
  • Spatial Resolution
  • Contrast Resolution
  • Imaging Uniformity
  • Small Animal Imaging
  • Modulation Transfer Function (MTF)
  • Feldkamp-Daivs-Kress (FDK) Algorithm
  • Beam Hardening

Brief

This article presents a micro-CBCT system based on X-ray polycapillary optics that improves spatial resolution, contrast resolution, and imaging uniformity for small animal imaging.

Summary

This article describes the design and implementation of a micro-computed tomography (micro-CT) scanner that uses X-ray polycapillary optics to improve the resolution and uniformity of images of small animals.

Here are some of the key findings of the article:

  • The spatial resolution of the system at 10% modulation transfer function (MTF) is 9.1 lp/mm, which is 1.35 times higher than that in the case of no optics.
  • The image uniformity deterioration caused by the hardening effect is effectively alleviated by filtrating the low energy X-rays with the X-ray polycapillary optics.
  • The contrast enhancement is more than twice as high when using the X-ray polycapillary optics.

The authors conclude that the design of this micro-CT system helps to improve image resolution, image uniformity, and eliminate blurring effects. They believe that this system has a wide range of potential applications in the field of small animal in vivo imaging.

Origin: https://wulixb.iphy.ac.cn/pdf-content/10.7498/aps.71.20212195.pdf

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