论文标题
低收入国家恶劣环境中放射应用的X射线成像探测器
X-ray imaging detector for radiological applications in the harsh environments of low-income countries
论文作者
论文摘要
本文描述了一种新型的医学X射线成像系统的发展，该系统适应低收入国家和中等收入国家的需求和限制。开发的系统基于间接转换链：闪烁板在被Xrays激发时会产生可见光，然后校准的多相机体系结构将可见光从闪烁体转换为一组数字图像。然后，部分图像通过并行处理单元和专用软件进行了未成破坏，增强和缝制。所有检测器组件都经过精心选择，专注于优化系统的图像质量，稳健性，成本，有效性和在恶劣的热带环境中工作的能力。以此目的，对不同的自定义和商业组件进行了表征。最终的检测器可以生成高质量的医学诊断图像，即使在严峻的环境（即60摄氏度）和98％的湿度下，DQE水平高达60％，在2.34微灰色下。
This paper describes the development of a novel medical Xray imaging system adapted to the needs and constraints of low and middle income countries. The developed system is based on an indirect conversion chain: a scintillator plate produces visible light when excited by the Xrays, then a calibrated multi camera architecture converts the visible light from the scintillator into a set of digital images. The partial images are then unwarped, enhanced and stitched through parallel processing units and a specialized software. All the detector components were carefully selected focusing on optimizing the system s image quality, robustness, cost, effectiveness and capability to work in harsh tropical environments. With this aim, different customized and commercial components were characterized. The resulting detector can generate high quality medical diagnostic images with DQE levels up to 60 percent, at 2.34 micro Gray, even under harsh environments i.e. 60 degrees Celsius and 98 percent humidity.
