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Pair Photon Counting Test: Repairing and Improving MCP for Enhanced Gain Map Quality

In this photon counting test, an 8” MCP pair undergoes repairs and enhancements for improved gain map quality. Issues include broken corners, small charge clouds, and gain non-uniformity. Explore the results for better resolution and gain uniformity.

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Pair Photon Counting Test: Repairing and Improving MCP for Enhanced Gain Map Quality

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  1. 8” 40µm MCP Pair Photon Counting Test Top MCP 100 MΩ in air ~400MΩ in vacuum XDL detector with pair, 0.003” spacer Bottom MCP has corner Missing, 25 MΩ

  2. 8” 40µm MCP Pair Photon counting Tests Zoom in – see multifibers FIRST IMAGE - stripes due to anode/charge cloud too small –fix : have just rebuilt with 0.7mm biasable, spacer. Broken off corner on bottom MCP. Anode – X, photon pulses Gain ~106, <500µm resolution

  3. 8” 40µm MCP Pair Gain Map Y gain slice Y gain slice X gain slice FIRST Gain map –multifiber visible, lots of gain non-uniformity

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