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Recent developments on next-generation microchannel plates for particle identification applications
Author(s): Till Cremer; Bernhard W. Adams; Melvin Aviles; Camden D. Ertley; Michael R. Foley; Alexey Lyashenko; Michael J. Minot; Mark A. Popecki; Travis Rivera; Michael E. Stochaj; Anil U. Mane; Jeffrey W. Elam; Maximilian Gebhard; Oswald H. Siegmund
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Paper Abstract

Incom Inc. is developing and commercializing a novel type of microchannel plate (MCP) electron multipliers. These new devices are called “ALD-GCA-MCPs” and are made from glass capillary arrays (GCA), glass plates with a regular array of hollow glass capillaries that are functionalized using atomic layer deposition (ALD) thin film coating technology. ALD-GCA-MCPs are a technology advancement that affords MCPs with significantly improved performance, as compared to conventional MCPs. Notable benefits over conventional lead-oxide based MCPs are larger size, high and stable gain, low dark counts and gamma-ray sensitivity, improved mechanical stability, and the unique ability to tune the MCP resistance and electron amplification characteristics over a much wider range and independent from the glass substrate. Incom now routinely produces ALD-GCA-MCPs with 10 and 20 μm pore size at MCP dimensions up to 20 cm x 20 cm. The MCPs show a number of favorable characteristics, such as 3x lower gamma-ray sensitivity compared to conventional MPCs, low background (< 0.05 cts/s/cm2), and stable, high gains (<1×104 for single MCP and <1×107 for a chevron pair configuration, at 1000V/MCP). ALD-GCA-MCPs find use in a variety of photon counting applications and are particularly suited for charged particle detection that requires high timing and spatial resolution, such as Ion time-of-flight (TOF), electron spectroscopies, analytical and space instruments, and MCP-based photomultipliers such as the Large-Area Picosecond Photodetector (LAPPDTM), which is also being developed by Incom Inc. In this paper, we provide a brief technology overview highlighting the current state of the art of Incom’s ALD-GCA-MCP technology, as well as current and future development efforts that address the GCA glass substrate as well as the resistive and electron emissive ALD coatings.

Paper Details

Date Published: 9 September 2019
PDF: 15 pages
Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 111180M (9 September 2019); doi: 10.1117/12.2530037
Show Author Affiliations
Till Cremer, Incom, Inc. (United States)
Bernhard W. Adams, Incom, Inc. (United States)
Melvin Aviles, Incom, Inc. (United States)
Camden D. Ertley, Incom, Inc. (United States)
Michael R. Foley, Incom, Inc. (United States)
Alexey Lyashenko, Incom, Inc. (United States)
Michael J. Minot, Incom, Inc. (United States)
Mark A. Popecki, Incom, Inc. (United States)
Travis Rivera, Incom, Inc. (United States)
Michael E. Stochaj, Incom, Inc. (United States)
Anil U. Mane, Argonne National Lab. (United States)
Jeffrey W. Elam, Argonne National Lab. (United States)
Maximilian Gebhard, Argonne National Lab. (United States)
Oswald H. Siegmund, Univ. of California, Berkeley (United States)


Published in SPIE Proceedings Vol. 11118:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
Oswald H. Siegmund, Editor(s)

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