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Published byHelena Elliott Modified over 8 years ago
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Design and fabrication of electrical measurement system for microchannel plates (LAPD weekly group meeting) Feb-01-2011 Anil Mane, Qing Peng, Jeffrey Elam ALD Research Program, Process Technology Research Group Energy Systems Division.
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Objective: To build UV-based gain measurement set up for quick ALD functionalized MCP performance test
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Photograph of gain measurement setup: Ready to test MCP Test 1-2 MCP per day (cause by small capacity turbo pump) 10/28/2010 Dual MCPs testing (Possible to load 3 MCPs) 3 high voltage (0-5kV) DC power supply pA current meter A new EMWCD submitted in Oct 10 and approved in first week of Jan 11
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HW design for MCP Gain test Electrical connections Shielded UV source for electron generation Drain resistors box
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Photograph of MCP(s) holder assembly: MCP 114 is loaded on the holder and will be tested 10/28/2010 Al anode Anode and MCP bottom contact separated with insulating spacers MCP top contact
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I-V data with now set-up: Connections are ok 10/28/2010 R=60M
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System capabilities: Current vs. Voltage (I-V) Resistance vs. Temperature (R-T) (Thermal coefficient, activation energy) Resistance vs. Time (R-t) @ fix HV Gain vs. voltage Long term stability under scrubbing condition Two optical windows (possible to get thermal imaging with CCD)
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