论文标题
轻巧的，用户可配置的检测器ASIC数字体系结构，带有芯片数据压缩的MHz X射线相干衍射成像
A lightweight, user-configurable detector ASIC digital architecture with on-chip data compression for MHz X-ray coherent diffraction imaging
论文作者
论文摘要
如今，在光源上使用的大多数X射线像素探测器都会从检测器ASIC传输原始像素数据。随着更先进的ASIC技术节点用于科学应用，可以将来自计算域（例如压缩）的更多数字功能直接集成到检测器序列上以提高数据速度。在本文中，我们描述了具有片上压缩的轻巧，用户可容纳的检测器ASIC数字体系结构，可以在ASIC外围的合理区域中\ si {130} {\ nm}技术实现。此外，我们提出了一种设计，以有效地处理并行压缩机流的变量数据。该体系结构包括可选择的损失和无损压缩块。在模拟和实验性X射线PTYCHOPHICH学数据集上评估了有损压缩算法的影响。该体系结构是一种实用的方法，可以提高对连续\ si {1} {\ MHz}制度连续的\ si {1} {\ MHz}制度的实用方法。
Today, most X-ray pixel detectors used at light sources transmit raw pixel data off the detector ASIC. With the availability of more advanced ASIC technology nodes for scientific application, more digital functionality from the computing domains (e.g., compression) can be integrated directly into a detector ASIC to increase data velocity. In this paper, we describe a lightweight, user-configurable detector ASIC digital architecture with on-chip compression which can be implemented in \SI{130}{\nm} technologies in a reasonable area on the ASIC periphery. In addition, we present a design to efficiently handle the variable data from the stream of parallel compressors. The architecture includes user-selectable lossy and lossless compression blocks. The impact of lossy compression algorithms is evaluated on simulated and experimental X-ray ptychography datasets. This architecture is a practical approach to increase pixel detector frame rates towards the continuous \SI{1}{\MHz} regime for not only coherent imaging techniques such as ptychography, but also for other diffraction techniques at X-ray light sources.
