医用X射线在背散射成像中应用初探

Primary research for imaging of medical X-ray backscatter

在分析X射线背散射原理和成像机制的基础上,通过对利用医用X射线放射成像设备进行背散射信号的获取、存储及图像处理的说明,分析了医用X射线背散射成像的可行性和主要的技术方向.从理论和实验两个角度,描述了物质原子序数对X射线背散射成像的影响、试验环境的影响和噪声的产生机理及影响。实验表明,医用X射线作为对人体安全的射线源能够提供有效的信号,可以进行人体的X射线背散射成像研究。

This paper introduces the principle and imaging mechanism of X-ray backscatter briefly. The main Tech-direction and the feasibility of medical X-ray backscatter are analyzed by describing how to get and store the signal of X-ray backscatter and how to process the images with the medical diagnostic equipments. The affections of the atomic number, the experimental environment and the noise are showed from principle and-experiment. The experimental results proved that medical X-ray is safe to human and can pro...