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8” 40µm MCP Pair Photon Counting Test

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. 8” 40µm MCP Pair Photon counting Tests. Zoom in – see multifibers.

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8” 40µm MCP Pair Photon Counting Test

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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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