Huang Ying, Qu Bin, Sharma Prateek, Kuhls-Gilcrist Andrew, Wang Weiyuan, Titus Albert H, Cartwright Alexander N, Bednarek Daniel R, Rudin Stephen
Ying Huang, Bin Qu, Prateek Sharma, Albert H. Titus, Alexander N. Cartwright are with the Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260 USA (telephone: 716-829-5417). Stephen Rudin, Weiyuan Wang, Daniel R. Bednarek are with Toshiba Stroke Research Center (TSRC), University at Buffalo, The State University of New York, Buffalo, NY 14214 USA (telephone: 716-829-3594).
IEEE Nucl Sci Symp Conf Rec (1997). 2010 Oct 30;2010:2714-2717. doi: 10.1109/NSSMIC.2010.5874284.
The Solid-State X-ray Image Intensifier (SSXII) is a novel dynamic x-ray imager, based on an array of electron-multiplying CCDs (EMCCDs), that can significantly improve performance compared to conventional x-ray image intensifiers (XIIs) and flat panel detectors (FPDs). To expand the field-of-view (FOV) of the SSXII detectors while maintaining high resolution, a scalable component level modular design is presented. Each module can be fit together with minimum dead-space and optically coupled to one contiguous x-ray converter plate. The electronics of each of the modules consists of a detachable head-board, on which is mounted the EMCCD, and a driver board. The size of the head-boards is minimized to ensure that the modules fit together properly. The driver boards connect with the head-boards via flat cables and are designed to be plugged into the main mother-board that contains an FPGA chip that generates the driving clock signals for the EMCCDs and analog-to-digital converter (ADC). At the front-end, a high speed ADC on each of the driver boards samples and digitizes the EMCCD analog output signal and an extensible modular digital multiplexer back-end is used to acquire and combine image data from multiple modules. The combined digital data is then transmitted to a PC via a standard Camera Link interface. Eventually, this modular design will be extended to a 3×3 or larger array to accomplish full clinical FOVs and enable the SSXII to replace conventional lower-resolution XIIs or FPDs.
固态X射线图像增强器（SSXII）是一种新型动态X射线成像仪，基于电子倍增电荷耦合器件（EMCCD）阵列，与传统X射线图像增强器（XII）和平板探测器（FPD）相比，其性能有显著提升。为了在保持高分辨率的同时扩大SSXII探测器的视野（FOV），提出了一种可扩展的组件级模块化设计。每个模块可以以最小的死区拼接在一起，并与一块连续的X射线转换板进行光耦合。每个模块的电子设备包括一个可拆卸的头板，EMCCD安装在该头板上，以及一个驱动板。头板的尺寸被最小化，以确保模块能正确拼接在一起。驱动板通过扁平电缆与头板相连，并设计为插入包含FPGA芯片的主母板，该FPGA芯片为EMCCD和模数转换器（ADC）生成驱动时钟信号。在前端，每个驱动板上的高速ADC对EMCCD的模拟输出信号进行采样和数字化处理，并使用一个可扩展的模块化数字多路复用器后端来采集和组合来自多个模块的图像数据。然后，组合后的数字数据通过标准的Camera Link接口传输到个人计算机。最终，这种模块化设计将扩展到3×3或更大的阵列，以实现完整的临床视野，并使SSXII能够取代传统的低分辨率XII或FPD。
