AI 中文总结
该研究针对推进时域软X射线天文学需求，基于AXIS任务概念开发通用高速相机前端电子架构，设计AXIS-TAP技术演示器验证核心信号链架构，介绍了架构框架、演示器设计及可扩展性原则，待完成系统集成和测试后报告性能验证结果。
AI 中文摘要
推进时域软X射线天文学需要焦平面读出电子设备，能在保持多个探测器通道光谱保真度的同时进行高速低噪声数字化。美国国家航空航天局（NASA）的AXIS任务概念为开发适用于未来软X射线任务的通用高速（>=5fps）相机前端电子（FEE）架构提供了驱动要求和技术传承。FEE架构定义了模块化、双盒冗余配置，用于操作四个16通道CCD的焦平面。为验证核心信号链架构，设计了AXIS-TAP技术演示器，采用耐辐射组件商业等效物，直接与STA Archon台式读出系统接口，可同时从两个系统采集图像以验证飞行架构的噪声性能。本文介绍了FEE架构框架、AXIS-TAP演示器设计及可扩展性设计原则，性能验证结果将在AXIS-TAP系统集成和测试完成后报告。
英文摘要
Advancing time-domain soft X-ray astronomy demands focal plane readout electronics capable of high-speed digitization with low noise while maintaining spectral fidelity across multiple detector channels. The Advanced X-ray Imaging Satellite (AXIS), a NASA Probe-class mission concept, provided the driving requirements and heritage for developing a generalized high-speed (>=5 fps) camera Front-End Electronics (FEE) architecture applicable to future soft X-ray missions. The FEE architecture defines a modular, dual-box redundant configuration to operate a focal plane of four 16-channel CCDs, with functional partitioning for power distribution, thermal management, mechanism control, and image data acquisition and transmission to the spacecraft. To validate the core signal chain architecture, particularly the analog-to-digital conversion, FPGA-based processing, and Ethernet data transmission, a dedicated technology demonstrator, AXIS-TAP (ADC Testing and Acquisition Platform), has been designed and is currently in fabrication. AXIS-TAP employs commercial equivalents of radiation-tolerant components (FPGA, ADCs, Ethernet PHY) and interfaces directly with the STA Archon benchtop readout system, enabling simultaneous image acquisition from both systems to validate that the flight-like architecture achieves equivalent or superior noise performance. This paper presents the FEE architectural framework, the AXIS-TAP demonstrator design, and the design principles that enable scalability to future soft X-ray missions with similar detector requirements. Performance validation results will be reported upon completion of AXIS-TAP system integration and testing.
Comments8 pages, 9 figures, Submitted to SPIE 2026 Astronomical Telescopes + Instrumentation
