77 Developing Large-area Psec Timing: The MCP Return-Path Problem and a Proposed Solution
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Description: This is an old note, from July 2006, but may have some things of interest. HJF Abstract: One limiting factor in the speed of a 2-inch by 2-inch MCP is the inductance in the path that charge has to flow from the anode back to the source of the charge, the micro-channel plate output. In this note we propose a solution to the MCP problem that uses a grid in the anode plane and a small MCP-OUT physical gap to provide a fast capacitative return path. We provide the physical dimensions and a specifation of the anode we would like implemented in an MCP optimized for timing, hopefully the next MCP of the four we have ordered from Burle/Photonis.
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