面向未来X射线天文任务的快速、低噪声百万像素探测器与读出系统
Fast, low noise, megapixel detector and readout systems for future X-ray astronomy missions
AI总结：
该研究针对未来X射线天文任务的探测器读出速度瓶颈，提出需开发高通道数、高吞吐量且低噪声的读出架构，以满足高帧频、软X射线响应等性能要求。
AI中文摘要：
下一代战略性X射线天文任务将需要同时实现高角分辨率、大有效集光面积以及采用大格式焦平面探测器的宽场成像。为实现相关科学目标——从对明亮点源的精密测量到对微弱弥散辐射的探测与表征——对探测器性能提出了严格且在某些方面相互竞争的要求。具体而言，高帧频是必要的，以减轻明亮源观测中的光子堆积问题，并降低低表面亮度结构测量中粒子诱导背景的污染。与此同时，这些仪器必须保持优异的软X射线响应，这对读出噪声和事件表征的保真度提出了严格约束。最先进的X射线电荷耦合器件（CCD）已接近这些任务所需的许多关键性能指标，但读出速度仍是主要限制因素。要解决这一差距，需要可扩展至高通道数、维持高像素吞吐量并保留软X射线灵敏度所需低噪声特性的读出架构。
英文摘要：
Next-generation strategic X-ray astronomy missions will require the simultaneous achievement of high angular resolution, large effective collecting area, and wide-field imaging with large-format focal plane detectors. Realizing the associated science objectives--ranging from precision measurements of bright point sources to the detection and characterization of faint diffuse emission-places stringent and, in some cases, competing requirements on detector performance. In particular, high frame rates are necessary to mitigate photon pile-up in observations of bright sources and to reduce contamination from particle-induced background in measurements of low surface brightness structures. At the same time, these instruments must preserve excellent soft X-ray response, which places tight constraints on read noise and on the fidelity of event characterization. State-of-the-art X-ray charge-coupled devices (CCDs) approach many of the key performance metrics required for these missions, but readout speed remains a primary limitation. Addressing this gap requires readout architectures that scale to high channel count, sustain high pixel throughput, and preserve the low-noise characteristics needed for soft X-ray sensitivity.
