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Euclid flight H2RG IR detectors: per pixel conversion gain from on-ground characterization for the Euclid NISP instrument
Author(s): A. Secroun; R. Barbier; C. Buton; J.-C. Clémens; L. Conversi; A. Ealet; S. Ferriol; F. Fornari; W. Gillard; R. Kohley; B. Kubik; C. Rosset; B. Serra; G. Smadja; J. Zoubian
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Paper Abstract

Euclid is a major ESA mission for the study of dark energy planned to launch in 2021. Euclid will probe the expansion history of the Universe using weak lensing and baryonic acoustic oscillations probes. A survey of 15,000 deg2 of the sky with the instrument NISP (Near-Infrared Spectro-Photometer), in the 900 – 2100 nm band, will give both the photometric and spectrometric redshifts of tens of millions of galaxies. The 16 H2RG detectors of the NISP focal plane array are still being characterized at CPPM (Marseille). Already 16 out of 20 flight detectors have been tested and a straightforward analysis done. Performance of the dedicated test benches – in particular control of flux and temperature – as well as an overview of the test flow will be presented. This paper will present methods and some preliminary results on two detectors focusing on the determination of a per pixel conversion gain.

Paper Details

Date Published: 12 July 2018
PDF: 10 pages
Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 1070921 (12 July 2018); doi: 10.1117/12.2312518
Show Author Affiliations
A. Secroun, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)
R. Barbier, IPNL, CNRS, Lyon Univ. (France)
C. Buton, IPNL, CNRS, Lyon Univ. (France)
J.-C. Clémens, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)
L. Conversi, ESAC, ESA (Spain)
A. Ealet, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)
S. Ferriol, IPNL, CNRS, Lyon Univ. (France)
F. Fornari, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (Italy)
W. Gillard, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)
R. Kohley, ESAC, ESA (Spain)
B. Kubik, IPNL, CNRS, Lyon Univ. (France)
C. Rosset, APC, CNRS Paris Diderot Univ. (France)
B. Serra, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)
G. Smadja, IPNL, CNRS, Lyon Univ. (France)
J. Zoubian, Aix Marseille Univ., CNRS/IN2P3, CPPM (France)


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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