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