Testing results from pathfinder HgCdTe infrared detectors for the Near-Earth Object Surveyor mission

Nick Reilly, Gregory R. Zengilowski, Sean Carey, Meghan Dorn, Peter R. Eisenhardt, Mark Farris, Donald Lee, Amy K. Mainzer, Franco Masci, Craig McMurtry, Jainmei Pan, Judith Pipher, Lennon Reinhart, Michael E. Ressler, Kristin Ringhand, Jason Surace, James Peterson, Andre F. Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Near-Earth Object (NEO) Surveyor, a NASA planetary defense space mission, is currently in Phase B with a launch date in 2026. NEO Surveyor is an infrared telescope designed to detect and characterize Potentially Hazardous Asteroids (PHAs). The required sensors leverage the space flight heritage and further development over the last 15 years of HgCdTe arrays to detect infrared light spanning from 4 to 10 µm. NEO Surveyor will employ eight passively cooled HgCdTe Sensor Chip Assemblies (SCAs) across two bands, each band consisting of a 1x4 SCA mosaic to cover a wide field of view. Four of these SCAs have a >5.5 µm cutoff wavelength and cover the shorter 4-5.2 µm (NC1) band, while four SCAs will have a >10.5 µm cutoff wavelength and span the longer 6-10 µm (NC2) band. We present calibration and performance results from two recently produced pathfinder SCAs, one for each band, manufactured by Teledyne Imaging Sensors with development guidance from the University of Arizona, the University of Rochester, and JPL. Both devices demonstrate the requisite low dark current, high well depth, and high quantum efficiency, exceeding mission requirements.

Original languageEnglish (US)
Title of host publicationX-Ray, Optical, and Infrared Detectors for Astronomy X
EditorsAndrew D. Holland, James Beletic
PublisherSPIE
ISBN (Electronic)9781510653634
DOIs
StatePublished - 2022
EventX-Ray, Optical, and Infrared Detectors for Astronomy X 2022 - Montreal, Canada
Duration: Jul 17 2022Jul 20 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12191
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceX-Ray, Optical, and Infrared Detectors for Astronomy X 2022
Country/TerritoryCanada
CityMontreal
Period7/17/227/20/22

Keywords

  • HgCdTe
  • LWIR
  • MWIR
  • NEO Surveyor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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