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Proceedings Paper

Detector chain calibration strategy for the Euclid flight IR H2RGs
Author(s): R. Barbier; C. Buton; J.-C. Clemens; L. Conversi; A. Ealet; S. Ferriol; F. Fornari; W. Gillard; R. Kohley; B. Kubik; C. Rosset; A. Secroun; B. Serra; G. Smadja; J. Zoubian
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Paper Abstract

Euclid is an ESA mission to map the geometry of the Dark Universe with a planned launch date in 2021.1 Two primary cosmological probes, weak gravitational lensing and baryonic acoustic oscillations, are implemented through a VISible imager (VIS) and a Near-Infrared Spectrometer and Photometer (NISP).2 The ground characterization of the NISP Flight Sensor Chip Systems (SCS) followed by the pixel response calibration aims to produce all informations to correct and control the accuracy of the signal. This work reports on the ground characterization of the NISP detector chain. The detector and electrical effects are likely to generate statistical fluctuations and systematic errors on the final flux measurement. The analysis strategies to maintain the pixel relative response accuracy within 1% is proposed in this work. The Euclid NISP test ow is presented and the main concerns of the detector chain calibration, such as non-linearity, charge trapping and de-trapping are discussed on the basis of the analysis of the flight detectors characterization data.

Paper Details

Date Published: 6 July 2018
PDF: 21 pages
Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 107090S (6 July 2018); doi: 10.1117/12.2311966
Show Author Affiliations
R. Barbier, Lyon Univ., CNRS/IN2P3, IPNL (France)
C. Buton, Lyon Univ., CNRS/IN2P3, IPNL (France)
J.-C. Clemens, Aix-Marseille Univ., CNRS/IN2P3, CPPM (France)
L. Conversi, ESAC, ESA (Spain)
A. Ealet, Aix-Marseille Univ., CNRS/IN2P3, CPPM (France)
S. Ferriol, Lyon Univ., CNRS/IN2P3, IPNL (France)
F. Fornari, Istituto Nazionale di Fisica Nucleare (Italy)
W. Gillard, Aix-Marseille Univ., CNRS/IN2P3, CPPM (France)
R. Kohley, ESAC, ESA (Spain)
B. Kubik, Lyon Univ., CNRS/IN2P3, IPNL (France)
C. Rosset, Paris Diderot Univ., CNRS/IN2P3, APC (France)
A. Secroun, Aix-Marseille Univ., CNRS/IN2P3, CPPM (France)
B. Serra, Aix-Marseille Univ., CNRS/IN2P3, CPPM (France)
G. Smadja, Lyon Univ., CNRS/IN2P3, IPNL (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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