Effect of MCP parameters on resolution of image intensifier
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摘要: 为了全面分析微通道板(MCP)参数对微光像增强器分辨力的影响，利用电子散射理论分析了MCP输出电子横向散射和MCP非开口面的电子散射情况，得到了MCP通道间距、输出电极结构和开口面积比等参数对微光像增强器分辨力的影响。分析结果指出：通过减小通道间距、采用MCP输出面镀多层电极或增加MCP输出端电极深度实现减小MCP输出电子横向扩散、增加开口面积比等，提高整个微光像增强器的分辨力。试验证明该方法有助于提高微光像增强器分辨力。Abstract: The performance of microchannel plate (MCP) is very important for the resolution of image intensifier. In order to analyze the impact of MCP parameters on the resolution of image intensifier, the transverse scattering of electrons from the output surface of MCP and the elastic scattering of electrons from the non-open surface of MCP were investigated by using electron scattering theory. The results show that the resolution of image intensifier can be improved by reducing channel distance, using multilayer electrodes, increasing the depth of output electrode and increasing open area ratio.
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Keywords:
- microchannel plate /
- image intensifier /
- resolution
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