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Proceedings Paper

Microchannel plate detector technology potential for LUVOIR and HabEx
Author(s): O. H. W. Siegmund; C. Ertley; J. V. Vallerga; E. R. Schindhelm; A. Harwit; B. T. Fleming; K. C. France; J. C. Green; S. R. McCandliss; W. M. Harris
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Paper Abstract

Microchannel plate (MCP) detectors have been the detector of choice for ultraviolet (UV) instruments onboard many NASA missions. These detectors have many advantages, including high spatial resolution (<20 μm), photon counting, radiation hardness, large formats (up to 20 cm), and ability for curved focal plane matching. Novel borosilicate glass MCPs with atomic layer deposition combine extremely low backgrounds, high strength, and tunable secondary electron yield. GaN and combinations of bialkali/alkali halide photocathodes show promise for broadband, higher quantum efficiency. Cross-strip anodes combined with compact ASIC readout electronics enable high spatial resolution over large formats with high dynamic range. The technology readiness levels of these technologies are each being advanced through research grants for laboratory testing and rocket flights. Combining these capabilities would be ideal for UV instruments onboard the Large UV/Optical/IR Surveyor (LUVOIR) and the Habitable Exoplanet Imaging Mission (HABEX) concepts currently under study for NASA’s Astrophysics Decadal Survey.

Paper Details

Date Published: 29 August 2017
PDF: 14 pages
Proc. SPIE 10397, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX, 1039711 (29 August 2017); doi: 10.1117/12.2274281
Show Author Affiliations
O. H. W. Siegmund, Univ. of California, Berkeley (United States)
C. Ertley, Univ. of California, Berkeley (United States)
J. V. Vallerga, Univ. of California, Berkeley (United States)
E. R. Schindhelm, Southwest Research Institute (United States)
A. Harwit, Ball Aerospace & Technologies Corp. (United States)
B. T. Fleming, Univ. of Colorado Boulder (United States)
K. C. France, Univ. of Colorado Boulder (United States)
J. C. Green, Univ. of Colorado Boulder (United States)
S. R. McCandliss, Johns Hopkins Univ. (United States)
W. M. Harris, The Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 10397:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XX
Oswald H. Siegmund, Editor(s)

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