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本文讨论和分析第二代倒象式微光象增强器前级倒象电子光学系统与后级近贴系统的匹配,以及后级近贴系统的成象特性。在确定的物理模型基础上,导出了斜切的微通道板的增益表达式;分析了微通道板的入射电子能量的选择、板的工作电压及斜切角等参数,对于系统增益和成象性能的影响;最后,对所使用的微通道板、后近贴聚焦系统和荧光屏,对成象质量的影响作了解析分析,定量地给出了每一部分以及它们相综合的调制传递函数的数学表达式。
This article discusses and analyzes the matching of the first-generation inverted optoelectronic optical system of the second generation inverted-image micro-image intensifier with the posterior-near-positron system, and the imaging characteristics of posterior-posterior close-in systems. Based on the determined physical model, the gain expression of the chamfered microchannel plate is derived. The parameters of incident electron energy of the microchannel plate, the operating voltage of the plate and the chamfering angle are analyzed. For the system gain and imaging Finally, the effects of the microchannel plate, the near-focusing system and the phosphor screen on the imaging quality are analyzed and analyzed. Quantitatively, the mathematics of each part and their combined modulation transfer functions expression.