12 January 1993 Microchannel-plate-based electro-optical A-D conversion
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A novel microchannel plate (MCP) based electrooptical A/D converter is proposed for signal bandwidths in excess of 100 MHz. The signal forward-biases an electron flux through 500 impedance matched transmission lines deposited on an MCP. The backbiasing of the gap between adjacent MCPs provides a voltage threshold for the signal triggering of an electron cascade in the second MCP. The second MCP is biased by a square wave timing pulse in order to measure the time at which the signal exceeded the backbias threshold. It is shown that reasonable MCP operating parameters result in 100 psec time resolution. The Nyquist criteria is applied to determine the least bit size for voltage sampling of a transient pulse.
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Mohamed C. Zatet, Mohamed C. Zatet, Robert Y. Levine, Robert Y. Levine, } "Microchannel-plate-based electro-optical A-D conversion", Proc. SPIE 1772, Optical Information Processing Systems and Architectures IV, (12 January 1993); doi: 10.1117/12.140921; https://doi.org/10.1117/12.140921

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