弱信号下硅光导摄像管的性能

• 作 者: 陈伯平
• 出 处: 光学工程
• 发表日期: 1978年02期
• 关键词: 量子效率 正向电压 均方根误差 前置放大器 积累时间 电压基准 横向速度 电视系统 磁带记录 数模转换器

McCord和Westphal的论文提出了一个冷却到干冰温度的工业用硅光导摄像管,可用在微光下数小时的信号积累。McCord和Frankston最近的文章论述了可适用于充分曝光了的帧的性能,给人以深刻的印像。Westphal等用硅增强靶光导摄像管(SIT)获得了同样的结果。然而,在这两种情况下,谈得较多的是灵敏阈特性;

The paper by McCord and Westphal suggests an industrial silicon photoconductor tube cooled to dry ice temperatures that can be used for hours of signal accumulation in low light. Recent articles by McCord and Frankston deal with the impressive performance that can be applied to fully exposed frames. Westphal et al. Obtained the same result with a silicon enhanced target light guide tube (SIT). However, in both cases, the more talkative is the threshold of sensitivity;