Nancy Grace Roman Space Telescope coronagraph EMCCD flight camera electronics development

Olivier Daigle; James Veilleux; Frédéric J. Grandmont; Patrick Morrissey; Christophe Basset; Nathan Bush; Michael Hoenk; Adam Gilbert; Jérémy Turcotte; Abtin Ghodoussi

doi:10.1117/12.2626242

27 August 2022 Nancy Grace Roman Space Telescope coronagraph EMCCD flight camera electronics development

Olivier Daigle, James Veilleux, Frédéric J. Grandmont, Patrick Morrissey, Christophe Basset, Nathan Bush, Michael Hoenk, Adam Gilbert, Jérémy Turcotte, Abtin Ghodoussi

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 1218064 (2022) https://doi.org/10.1117/12.2626242
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The Nancy Grace Roman Space Telescope Coronagraph is a JPL-led space-based instrument that will be the most sensitive instrument ever built for direct imaging and characterization of exoplanets in the visible. The instrument contrast is expected to be better than 1e-9, which implies that it will be capable of seeing exoplanets with an apparent magnitude < 30. With such a low brightness, only a few photons per hour will be perceived by its optical detectors. Two cameras will be used on the instrument for wavefront sensing, direct imaging and spectroscopy, with frame rates ranging from 1000 fps to less than 0.01 fps. For such a broad range of operating modes and industry leading noise figure, JPL has selected the 1024x1024 CCD201- 20 EMCCD from Teledyne-e2v as the image sensor for the two coronagraph cameras and appealed to Nüvü Caméras to adapt its most recent space controller design for the mission specifics. The new version of the camera readout electronics co-developed with ABB Space System group brings important improvements over the version flown at the edge of space in CSA’s 2018 STRATOS campaign namely on reliability, functionality, thermal control, power, volume and mass whilst preserving its unique noise performance. This paper presents an overview of the project and addresses the development of the delivered flight modules.

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Olivier Daigle, James Veilleux, Frédéric J. Grandmont, Patrick Morrissey, Christophe Basset, Nathan Bush, Michael Hoenk, Adam Gilbert, Jérémy Turcotte, and Abtin Ghodoussi "Nancy Grace Roman Space Telescope coronagraph EMCCD flight camera electronics development", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 1218064 (27 August 2022); https://doi.org/10.1117/12.2626242

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