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Towards Large Area, Picosecond-Level Photodetectors - Capp.iit.edu

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Improvement in Glass Capillary Array Fabrication<br />

1 MCP, Phosphor readout<br />

2 MCPs, Photon counting<br />

Friday, November 18, 2011<br />

Early 2010 July 2011<br />

UV 184nm illumination<br />

<strong>Towards</strong> <strong>Large</strong> <strong>Area</strong> MCP <strong>Photodetectors</strong>, R. Wagner, Argonne, Antiproton Physics Workshop, Fermilab, 20111118<br />

• 20 µm MCP, L/D = 60, 8˚ pore bias,<br />

1000V applied to each MCP<br />

• Imaging & gain comparable to<br />

commercial MCPs<br />

• Sample performance shows dramatic<br />

improvement due to capillary<br />

process improvements<br />

20

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