13 November 1980 Resolution Loss In Microchannel Plate Image-Intensifier Tubes At High Gains
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Proceedings Volume 0190, Los Alamos Conference on Optics 1979; (1980) https://doi.org/10.1117/12.957785
Event: Los Alamos Conference on Optics '79, 1979, Los Alamos, United States
A loss of resolution was experimentally observed when using a 40-mm microchannel plate image-intensifier tube at high gains. A controlled set of experiments was performed to study this effect. A resolution chart, under constant illumination, was viewed while a lens-image intensifier combination was varied so as to maintain constant light output from the system. Significant resolution degradation can occur at the higher gains. Experiments were performed to determine whether this phenomenon was due to photon statistics at the photocathode or to an increase in noise at the higher microchannel plate (MCP) voltages. The experiments showed that the controlling factor was the voltage across the MCP and not the photon statistics. A theoretical calculation is presented that confirms and augments the experimental results.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. R. Parker, Ray Engelke, W. Morton, A. S. Lundy, "Resolution Loss In Microchannel Plate Image-Intensifier Tubes At High Gains", Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); doi: 10.1117/12.957785; https://doi.org/10.1117/12.957785


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