Detection and repair of radiation induced single event upsets in an FPGA-based readout for TES bolometer arrays

Graeme Smecher; François Aubin; Oleg Djazovski; Matt Dobbs; Gordon Faulkner; Fabio Gulino; Peter O. Hyland; Kevin MacDermid; Neil Rowlands

doi:10.1117/12.858201

15 July 2010 Detection and repair of radiation induced single event upsets in an FPGA-based readout for TES bolometer arrays

Graeme Smecher, François Aubin, Oleg Djazovski, Matt Dobbs, Gordon Faulkner, Fabio Gulino, Peter O. Hyland, Kevin MacDermid, Neil Rowlands

Author Affiliations +

Proceedings Volume 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V; 77412U (2010) https://doi.org/10.1117/12.858201
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

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Graeme Smecher, François Aubin, Oleg Djazovski, Matt Dobbs, Gordon Faulkner, Fabio Gulino, Peter O. Hyland, Kevin MacDermid, and Neil Rowlands "Detection and repair of radiation induced single event upsets in an FPGA-based readout for TES bolometer arrays", Proc. SPIE 7741, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, 77412U (15 July 2010); https://doi.org/10.1117/12.858201

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