AI 中文总结
光速项目为麦哲伦望远镜设计超高速、超低读出噪声成像仪，基于单光子分辨探测器技术，介绍其光学设计、性能及科学案例，还借鉴了单通道原型proto-Lightspeed的经验，有望带来变革
AI 中文摘要
光速项目将为6.5米麦哲伦·克莱望远镜打造一款超高速（>kHz）、超低读出噪声、多色（ugriz + 红外）成像仪。在单通道配置下，还能实现单次线性偏振测量、窄带成像或白光成像。它基于开创性的单光子分辨探测器技术设计，包括仙童成像的深亚电子读出噪声CMOS图像传感器和莱昂纳多的HgCdTe雪崩光电二极管阵列。本文介绍了其基本光学设计概念，预测了其在天空中的性能，并强调了光速项目可能带来变革的科学案例。它基于单通道原型proto-Lightspeed的成功，该原型现作为克莱望远镜上的PI仪器可用。我们还讨论了proto-Lightspeed的现状以及从其调试中吸取的经验教训，这些经验适用于光速项目及任何寻求集成科学CMOS图像传感器的仪器开发。
英文摘要
Lightspeed will be an ultra-fast (> kHz), ultra-low read noise, multicolor (ugriz + IR) imager for the 6.5 meter Magellan Clay telescope. In a single-channel configuration, Lightspeed will also enable single-shot linear polarimetry, narrowband imaging, or white-light imaging. Lightspeed is designed around groundbreaking single-photon-resolving detector technologies: deep sub-electron read noise CMOS image sensors from Fairchild Imaging and a HgCdTe avalanche photodiode array from Leonardo. Here we present Lightspeed's basic optical design concept, predict its on-sky performance, and highlight science cases that Lightspeed has the potential to revolutionize. Lightspeed builds upon the success of proto-Lightspeed, a single-channel prototype employing commercial-off-the-shelf re-imaging optics. proto-Lightspeed is now available as a PI instrument on the Clay telescope. We also discuss the current status of proto-Lightspeed and lessons learned from its commissioning, applicable to the development of Lightspeed and any other instrument seeking to integrate scientific CMOS image sensors.
Comments11 pages, 6 figures. To appear in Proc. SPIE 14149, Ground-based and Airborne Instrumentation for Astronomy XI, paper 14149-89
