Air-transfer production method for large-area picosecond photodetectors

We have designed and prototyped the process steps for the batch production of large-area micro-channel-plate photomultipliers (MCPPMT) using the “air-transfer” assembly process developed with single LAPPDTM modules. Results are presented addressing the challenges of designing a robust package that c...

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Bibliographic Details
Published in:Review of scientific instruments 2020-05, Vol.91 (5)
Main Authors: Angelico, E., Elagin, A., Frisch, H. J., Spieglan, E., Adams, B. W., Foley, M. R., Minot, M. J.
Format: Article
Language:English
Subjects:
Instruments & Instrumentation
OTHER INSTRUMENTATION
Physics
Online Access:Get full text
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Summary:We have designed and prototyped the process steps for the batch production of large-area micro-channel-plate photomultipliers (MCPPMT) using the “air-transfer” assembly process developed with single LAPPDTM modules. Results are presented addressing the challenges of designing a robust package that can transmit large numbers of electrical signals for pad or strip readout from inside the vacuum tube and of hermetically sealing the large-perimeter window–body interface. We have also synthesized a photocathode in a large-area low-aspect-ratio volume and have shown that the micro-channel plates recover their functionality after cathode synthesis. These steps inform a design for a multi-module batch facility employing dual nested low-vacuum and ultra-high-vacuum systems in a small-footprint. The facility design provides full access to multiple MCP-PMT modules prior to hermetic pinch-off for leak-checking and real-time photocathode optimization.
ISSN:0034-6748
1089-7623