Abstract
X-ray luminescence tomography (XLT) is a promising imaging technology based on x-ray beams, with high-resolution capability. We developed a fan-beam XLT system, where the x-ray beam scans the object at predefined directions and positions. As the scanning at one position needs to cover the object, the data acquisition time is usually long. To improve spatial resolution, we propose a three-dimensional multiple-beam x-ray luminescence imaging method, in which the x rays are modulated by an x-ray fence-modulation component. The proposed method can produce multiple x-ray beams and ensure spatial resolution along the longitudinal direction as well as the transverse plane. The proposed methods of single-source experiments can achieve 0.62 mm in location error and 0.87 in the dice coefficient while 1.32 mm in location error and 0.63 in the dice coefficient in the double-source experiment. The simulation experiments show that our proposed method can achieve better results at different depths than the traditional scanning method. It is also demonstrated that the best simulation results can be achieved with the smallest x-ray width.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Wei Zhang, Dianwen Zhu, Michael Lun, and Changqing Li
Biomed. Opt. Express 7(7) 2506-2523 (2016)
Dongmei Chen, Shouping Zhu, Xu Cao, Fengjun Zhao, and Jimin Liang
Biomed. Opt. Express 6(7) 2649-2663 (2015)
Yuqing Hou, Zijian Tang, Huangjian Yi, Hongbo Guo, Jingjing Yu, and Xiaowei He
J. Opt. Soc. Am. A 38(7) 985-991 (2021)