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Proceedings Paper • Open Access

Performance characterization of the EarthCARE BBR Detectors
Author(s): C. Proulx; M. Allard; T. Pope; B. Tremblay; F. Williamson; C. Julien; C. Larouche; J. Delderfield; D. Parker

Paper Abstract

The Broadband Radiometer (BBR) is an instrument being developed for the ESA EarthCARE satellite. The BBR instrument objective is to provide measurements of the reflected short-wave (0.25-4.0 μm) and emitted long-wave (4.0-50 μm) top of the atmosphere (TOA) radiance over three along-track views (forward, nadir and backward). The instrument has three fixed telescopes, one for each view, each containing a broadband detector. The BBR instrument is led by SEA in the UK with RAL responsible for the BBR optics unit (OU) while EADS Astrium is the EarthCARE prime contractor. A detailed description of the instrument is provided in [1].

The BBR detectors consist in three dedicated assemblies under the responsibility of INO. The detectors development started in 2008 and led to the design and implementation of a new gold black deposition facility at INO [2], in parallel with the preliminary and detailed design phases of the detector assemblies. As of today, two breadboard models and one engineering model have been delivered to RAL. In the BBR OU each detector mechanically interfaces with the telescope and electrically with the front-end electronics (FEE). The detectors’ development is now at the Critical Design Review (CDR) level.

This paper first provides a description of the detector design along with its principles of operation. It further presents and discusses measurement and analysis results for the performance characterization of the engineering model in the context of the applicable requirements. Detector-level qualification planning is finally discussed.

Paper Details

Date Published: 20 November 2017
PDF: 5 pages
Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 1056508 (20 November 2017); doi: 10.1117/12.2309219
Show Author Affiliations
C. Proulx, Institut National d’Optique (Canada)
M. Allard, Institut National d’Optique (Canada)
T. Pope, Institut National d’Optique (Canada)
B. Tremblay, Institut National d’Optique (Canada)
F. Williamson, Institut National d’Optique (Canada)
C. Julien, Institut National d’Optique (Canada)
C. Larouche, Institut National d’Optique (Canada)
J. Delderfield, STFC Rutherford Appleton Lab. (United Kingdom)
D. Parker, STFC Rutherford Appleton Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 10565:
International Conference on Space Optics — ICSO 2010
Errico Armandillo; Bruno Cugny; Nikos Karafolas, Editor(s)

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