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9 September 2019 Developments in large-area flat panel photodetectors with ALD glass capillary array microchannel plates
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Abstract
Incom, Inc. is now producing commercially available Large Area Picosecond Photo-Detectors (LAPPD™) usable in applications by early adopters. The first generation LAPPD™ is an all-glass 230 x 220 x 22 mm3 flat panel photodetector with a chevron stack of glass capillary array microchannel plates functionalized by atomic layer deposition, a semitransparent bi-alkali photocathode, and a strip-line anode. The photodetector is being optimized for applications requiring picosecond timing and millimeter spatial resolution and has achieved single photoelectron (PE) timing resolutions of α≤52 ps. Typical performance metrics include electron gains of 107 at 1 kV per MCP, low dark noise rates (15-30 Hz/cm2 at moderate gains), single PE spatial response along and across strips of 1.8 mm and 0.76 mm respectively and quantum efficiencies that are typically ≥20% at 365 nm. Changes to the “baseline” LAPPD™ are under development to optimize the photodetector for applications requiring very high spatial resolutions.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Camden D. Ertley, Alexey V. Lyashenko, Bernhard W. Adams, Till Cremer, Michael J. Minot, Mark A. Popecki, Michael R. Foley, Michael E. Stochaj, Cole J. Hamel, Satya P. Butler, Melvin Aviles, Travis W. Rivera, and Oswald H. W. Siegmund "Developments in large-area flat panel photodetectors with ALD glass capillary array microchannel plates", Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 111180L (9 September 2019); https://doi.org/10.1117/12.2530039
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