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Proceedings Paper

Detection and repair of radiation induced single event upsets in an FPGA-based readout for TES bolometer arrays
Author(s): Graeme Smecher; François Aubin; Oleg Djazovski; Matt Dobbs; Gordon Faulkner; Fabio Gulino; Peter O. Hyland; Kevin MacDermid; Neil Rowlands
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Paper Abstract

Frequency multiplexed readout systems for large TES bolometer arrays are in use for ground and balloonbased mm-wavelength telescopes. New digital backend electronics for these systems implement advanced signal processing algorithms on FPGAs. Future satellite instruments will likely use similar technology. We address the challenges of operating FPGAs in an orbital radiation environment using neighbour-neighbour monitoring, where each FPGA monitors its neighbour and can correct errors due to radiation events. This approach reduces the FPGA's susceptibility to crippling events without relying on triple redundancy or radiation-hardened parts, which raise the system cost, power budget, and complexity. This approach also permits earlier adoption of the latest FPGAs, since radiation-hardened variants typically lag the state of the art.

Paper Details

Date Published: 15 July 2010
PDF: 9 pages
Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77412U (15 July 2010); doi: 10.1117/12.858201
Show Author Affiliations
Graeme Smecher, McGill Univ. (Canada)
François Aubin, McGill Univ. (Canada)
Oleg Djazovski, Canadian Space Agency (Canada)
Matt Dobbs, McGill Univ. (Canada)
Gordon Faulkner, COM DEV International (Canada)
Fabio Gulino, COM DEV International (Canada)
Peter O. Hyland, McGill Univ. (Canada)
Kevin MacDermid, McGill Univ. (Canada)
Neil Rowlands, COM DEV International (Canada)

Published in SPIE Proceedings Vol. 7741:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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