7 Papers
6 Citations
C. Ketchazo is an academic researcher from Commissariat à l'énergie atomique et aux énergies alternatives. The author has contributed to research in topics: Pixel & Detector. The author has an hindex of 3, co-authored 4 publications.
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Papers
A detector interferometric calibration experiment for high precision astrometry
Antoine Crouzier,Fabien Malbet,François Hénault,A. Léger,Christophe Cara,J. M. LeDuigou,Olivier Preis,P. Kern,Alain Delboulbé,Guillermo Martin,Philippe Feautrier,Eric Stadler,S. Lafrasse,S. Rochat,C. Ketchazo,M. Donati,E. Doumayrou,P. O. Lagage,Mike Shao,Renaud Goullioud,Bijan Nemati,Chengxing Zhai,E. Behar,S. Potin,M. Saint-Pe,J. Dupont +25 more
TL;DR: A way to calibrate a detector for high accuracy astrometry using an astrometric simulator and an interferometric calibration system to validate both the hardware needed for the calibration and the signal processing methods.
MAJIS VIS-NIR channel: performances of the focal plane unit - flight model
Paolo Haffoud,A. Arondel,David Bolsée,V. Carlier,John Carter,Miriam E. Cisneros-González,Jean-Pierre Dubois,C. Dumesnil,Gianrico Filacchione,L. Gonnod,Cyrille Hannou,V. Hervier,Özgür Karatekin,C. Ketchazo,Yves Langevin,Jean-Christophe Le Clec'h,B. Lecomte,G. Morinaud,Nuno Pereira,Giuseppe Piccioni,Ann Carine Vandaele,Lionel Van Laeken,Mathieu Vincendon,François Poulet +23 more
- 27 Aug 2022
TL;DR: In this article , the authors describe the characterization of the VIS-NIR Focal Plane Unit (FPNU) of the MAJIS (Moons and Jupiter Imaging Spectrometer).
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MAJIS IR channel: 3) performance of the focal plane unit
John Carter,Paolo Haffoud,Yves Langevin,François Poulet,C. Ketchazo,Pierre Guiot,C. Dumesnil,C. Ruiz de Galarreta Fanjul,A. Arondel,V. Carlier,Jean-Pierre Dubois,L. Gonnod,Cyrille Hannou,V. Hervier,Jean-Christophe Le Clec'h,B. Lecomte,G. Morinaud,Xueyan Zhang +17 more
- 27 Aug 2022
TL;DR: In this paper , the authors describe the IR focal plane unit of the MAJIS imaging spectrometer for the JUICE mission to the Jupiter Sys tem, which offers strong versatility with the capability to acquire high resolution spectra from the Jupiter atmosphere to organic matter on icy moon surfaces, over a wide spectral and dynamical range.
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A detector interferometric calibration experiment for high precision astrometry
Antoine Crouzier,Fabien Malbet,François Hénault,A. Léger,Christophe Cara,J. M. LeDuigou,Olivier Preis,P. Kern,Alain Delboulbé,Guillermo Martin,Philippe Feautrier,Eric Stadler,S. Lafrasse,S. Rochat,C. Ketchazo,M. Donati,E. Doumayrou,P. O. Lagage,Mike Shao,Renaud Goullioud,Bijan Nemati,Chengxing Zhai,E. Behar,S. Potin,M. Saint-Pe,J. Dupont +25 more
TL;DR: In this paper, an experimental testbed combining an astrometric simulator and an interferometric calibration system is used to validate both the hardware needed for the calibration and the signal processing methods.
The latest results from DICE (Detector Interferometric Calibration Experiment)
Antoine Crouzier,Fabien Malbet,François Hénault,A. Léger,Christophe Cara,J. M. LeDuigou,Olivier Preis,P. Kern,A. Delboulbe,G. Martin,Philippe Feautrier,Eric Stadler,S. Lafrasse,Sylvain Rochat,C. Ketchazo,M. Donati,Eric Doumayrou,P. O. Lagage,M. Shao,Renaud Goullioud,Bijan Nemati,Chengxing Zhai,E. Behar,S. Potin,M. Saint-Pe,J. Dupont +25 more
TL;DR: In this paper, the Theia consortium is operating a testbed in vacuum in order to achieve 1e-5 pixel precision for the centroid estimation, which is a proof of concept for the precision requirement of Theia spacecraft.
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