Dynamic x-ray imagers have undergone extensive study due to their wide-ranging applications. However, as frame rates and resolutions increase, the accompanying growth in data volume imposes constraints on system capabilities, including data transmission, temporal bandwidth, processing capability, and power consumption. Herein we present a demonstration of an event-based x-ray imager that integrates Cs5Cu3Cl6I2${{\rm Cs}_5}{{\rm Cu}_3}{{\rm Cl}_6}{{\rm I}_2}$ scintillator film, free from ghosting, with an event-based vision sensor. Each pixel operates autonomously, producing a signal only upon detecting a change in contrast intensity. The Cs5Cu3Cl6I2${{\rm Cs}_5}{{\rm Cu}_3}{{\rm Cl}_6}{{\rm I}_2}$ scintillator film exhibits minimal ghosting artifacts (0.1%), which is a significant improvement compared to a conventional CsI:Tl scintillator (4.1%). The assembled imaging system finds practical applications in radiography and edge sharpening, achieving an impressive data compression ratio of 23.7%. Remarkably, this ratio is equivalent to the performance of intricate and energy-intensive software-based computing processes.

中文翻译：

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具有无重影闪烁体胶片的基于事件的 X 射线成像仪

动态 X 射线成像仪因其广泛的应用而受到广泛的研究。然而，随着帧速率和分辨率的提高，随之而来的数据量的增长对系统能力产生了限制，包括数据传输、时间带宽、处理能力和功耗。在此，我们展示了基于事件的 X 射线成像仪，该成像仪将C s 5 C u 3 C l 6 I 2${{\rm Cs}_5}{{\rm Cu}_3}{{\rm Cl}_6}{{\rm I}_2}$闪烁体薄膜（无重影）与基于事件的视觉传感器集成在一起。每个像素自主运行，仅在检测到对比度强度的变化时才产生信号。 C s 5 C u 3 Cl 6 I 2${{\rm Cs}_5}{{\rm Cu}_3}{{\rm Cl}_6}{{\rm I}_2}$闪烁体薄膜表现出最小的重影伪影 (0.1%)，与传统的 CsI:Tl 闪烁体 (4.1%) 相比，这是一个显着的改进。组装好的成像系统在射线照相和边缘锐化方面得到了实际应用，实现了令人印象深刻的 23.7% 的数据压缩率。值得注意的是，这个比率相当于复杂且耗能的基于软件的计算过程的性能。