扫描式数字X射线胸部摄影系统的研制

Research of a digital X-ray radiography system for chest examinations based on line-scan

扫描式数字X射线摄影系统属DR范畴,除具有DR的一般优点外,还具有散射射线影响小(零本底)、低剂量和低成本三大优点。探讨了以固体线阵探测器为基础的扫描式数字X射线胸部摄影系统的构建,包括系统整体设计方案、关键技术问题的阐述以及系统性能分析,并提出了进一步提高系统性能的可行方法。

Digital X-ray radiography system for chest examinations based on line scan belongs to the category of DR. Besides of all the common advantages of DR system, it has three more important advantages that are low effect of scatter ray, low dose and low cost. This article focuses on the design of such system based on solid linear-array detector, including the design of the whole system, discussions on pivotal problems, performance analysis and methods to improve the system.