2 August 2014 Euclid near infrared spectrophotometer instrument concept and first test results at the end of phase B
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Abstract
The Euclid mission objective is to understand why the expansion of the Universe is accelerating by mapping the geometry of the dark Universe by investigating the distance-redshift relationship and tracing the evolution of cosmic structures. The Euclid project is part of ESA's Cosmic Vision program with its launch planned for 2020. The NISP (Near Infrared Spectro-Photometer) is one of the two Euclid instruments and is operating in the near-IR spectral region (0.9-2μm) as a photometer and spectrometer. The instrument is composed of: - a cold (135K) optomechanical subsystem consisting of a SiC structure, an optical assembly (corrector and camera lens), a filter wheel mechanism, a grism wheel mechanism, a calibration unit and a thermal control system - a detection subsystem based on a mosaic of 16 Teledyne HAWAII2RG cooled to 95K with their front-end readout electronic cooled to 140K, integrated on a mechanical focal plane structure made with Molybdenum and Aluminum. The detection subsystem is mounted on the optomechanical subsystem structure - a warm electronic subsystem (280K) composed of a data processing / detector control unit and of an instrument control unit that interfaces with the spacecraft via a 1553 bus for command and control and via Spacewire links for science data This presentation describes the architecture of the instrument at the end of the phase B (Preliminary Design Review), the expected performance, the technological key challenges and preliminary test results obtained on a detection system demonstration model.
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Thierry Maciaszek, Thierry Maciaszek, Anne Ealet, Anne Ealet, Knud Jahnke, Knud Jahnke, Eric Prieto, Eric Prieto, Rémi Barbier, Rémi Barbier, Yannick Mellier, Yannick Mellier, Anne Costille, Anne Costille, Franck Ducret, Franck Ducret, Christophe Fabron, Christophe Fabron, Jean-Luc Gimenez, Jean-Luc Gimenez, Robert Grange, Robert Grange, Laurent Martin, Laurent Martin, Christelle Rossin, Christelle Rossin, Tony Pamplona, Tony Pamplona, Pascal Vola, Pascal Vola, Jean Claude Clémens, Jean Claude Clémens, Gérard Smadja, Gérard Smadja, Jérome Amiaux, Jérome Amiaux, Jean Christophe Barrière, Jean Christophe Barrière, Michel Berthe, Michel Berthe, Adriano De Rosa, Adriano De Rosa, Enrico Franceschi, Enrico Franceschi, Gianluca Morgante, Gianluca Morgante, Massimo Trifoglio, Massimo Trifoglio, Luca Valenziano, Luca Valenziano, Carlotta Bonoli, Carlotta Bonoli, Favio Bortoletto, Favio Bortoletto, Maurizio D'Alessandro, Maurizio D'Alessandro, Leonardo Corcione, Leonardo Corcione, Sebastiano Ligori, Sebastiano Ligori, Bianca Garilli, Bianca Garilli, Marco Riva, Marco Riva, Frank Grupp, Frank Grupp, Carolin Vogel, Carolin Vogel, Felix Hormuth, Felix Hormuth, Gregor Seidel, Gregor Seidel, Stefanie Wachter, Stefanie Wachter, Jose Javier Diaz, Jose Javier Diaz, Ferran Grañena, Ferran Grañena, Cristobal Padilla, Cristobal Padilla, Rafael Toledo, Rafael Toledo, Per B. Lilje, Per B. Lilje, Bjarte G. B. Solheim, Bjarte G. B. Solheim, Corinne Toulouse-Aastrup, Corinne Toulouse-Aastrup, Michael Andersen, Michael Andersen, Warren Holmes, Warren Holmes, Ulf Israelsson, Ulf Israelsson, Michael Seiffert, Michael Seiffert, Carissa Weber, Carissa Weber, Augustyn Waczynski, Augustyn Waczynski, René J. Laureijs, René J. Laureijs, Giuseppe Racca, Giuseppe Racca, Jean-Christophe Salvignol, Jean-Christophe Salvignol, Paolo Strada, Paolo Strada, } "Euclid near infrared spectrophotometer instrument concept and first test results at the end of phase B", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91430K (2 August 2014); doi: 10.1117/12.2056702; https://doi.org/10.1117/12.2056702
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