Tull R G, Choisser J P, Snow E H
Appl Opt. 1975 May 1;14(5):1182-9. doi: 10.1364/AO.14.001182.
We have successfully fabricated, tested, and operated a digital image tube consisting of a magnetically focused image intensifier tube in which a self-scanned linear array of 1024 silicon photodiodes operating in the EBS mode serves as the photoelectron image detector, amplifier, and intermediate image storage device. Integral on-chip MOS shift registers driven by an external clock sequentially interrogate the photodiodes through MOS FET multiplex switch arrays. Each output frame is a sequence of 256 analog pulses on each of four video lines. Laboratory and observing tests show that the output signal is photoelectron shot noise limited over at least a range of 1-10(5) detected photoelectrons per picture element, indicating that single photon detection is achieved. High-resolution astronomical spectroscopy has been carried out in the coudé spectrograph of the 2.7-m telescope at McDonald Observatory. Examples are shown.
我们已经成功制造、测试并运行了一种数字成像管，它由一个磁聚焦像增强管组成，其中一个工作在电子轰击硅靶（EBS）模式下的1024个硅光电二极管的自扫描线性阵列用作光电子图像探测器、放大器和中间图像存储装置。由外部时钟驱动的集成片上MOS移位寄存器通过MOS场效应管（MOS FET）多路开关阵列依次询问光电二极管。每个输出帧是四条视频线路上每条线路上256个模拟脉冲的序列。实验室和观测测试表明，在每个像素至少1 - 10⁵个检测到的光电子范围内，输出信号受光电子散粒噪声限制，这表明实现了单光子探测。已经在麦克唐纳天文台的2.7米望远镜的卡焦摄谱仪中进行了高分辨率天文光谱学研究。展示了一些示例。
