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Proceedings Paper

Photon counting EMCCD developments for the WFIRST coronagraph (Conference Presentation)
Author(s): Patrick Morrissey; Leon Harding; Michael Bottom; Rick Demers; Bobby Effinger; Don Nieraeth; Larry Hovland; Yuki Maruyama; Bijan Nemati; Nathan Bush; David Hall; Ross Burgon; Andrew Holland

Paper Abstract

A photon counting camera based on the Teledyne-e2v CCD201-20 electron multiplying CCD (EMCCD) is being developed for the NASA WFIRST coronagraph, an exoplanet imaging technology development of the Jet Propulsion Laboratory (Pasadena, CA) that is scheduled to launch in 2026. The coronagraph is designed to directly image planets around nearby stars, and to characterize their spectra. The planets are exceedingly faint, providing signals similar to the detector dark current, and require the use of photon counting detectors. Red sensitivity (600-980nm) is preferred to capture spectral features of interest. EMCCDs are baselined both as science and wavefront sensors in the coronagraph in order to simplify the system architecture. We are engaged in a test program to characterize the performance of the EMCCD in the required modes, as well as in a technology development program with Teledyne-e2v to ruggedize the sensors for use in space. In this paper we will summarize our progress, program status, and plans for flight development.

Paper Details

Date Published: 10 July 2018
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Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 107090B (10 July 2018); doi: 10.1117/12.2309387
Show Author Affiliations
Patrick Morrissey, Jet Propulsion Lab. (United States)
Leon Harding, Jet Propulsion Lab. (United States)
Michael Bottom, Jet Propulsion Lab. (United States)
Rick Demers, Jet Propulsion Lab. (United States)
Bobby Effinger, Jet Propulsion Lab. (United States)
Don Nieraeth, Jet Propulsion Lab. (United States)
Larry Hovland, Jet Propulsion Lab. (United States)
Yuki Maruyama, Jet Propulsion Lab. (United States)
Bijan Nemati, The Univ. of Alabama in Huntsville (United States)
Nathan Bush, The Open Univ. (United Kingdom)
David Hall, The Open Univ. (United Kingdom)
Ross Burgon, The Open Univ. (United Kingdom)
Andrew Holland, The Open Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 10709:
High Energy, Optical, and Infrared Detectors for Astronomy VIII
Andrew D. Holland; James Beletic, Editor(s)

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