8” 40µm mcp pair photon counting test
Post on 30-Dec-2015
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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. - PowerPoint PPT Presentation
TRANSCRIPT
8” 40µm MCP Pair Photon Counting Test
Bottom MCP has corner Missing, 25 MΩ
XDL detector with pair, 0.003” spacer
Top MCP 100 MΩ in air~400MΩ in vacuum
8” 40µm MCP Pair Photon counting Tests
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.
Zoom in – see multifibers
Anode – X, photon pulses
Gain ~106, <500µm resolution
8” 40µm MCP Pair Gain Map
Y gain slice
X gain slice
Y gain slice
FIRST Gain map – multifiber visible, lots of gain non-uniformity
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