Euclid near infrared spectrophotometer instrument concept and first test results at the end of phase B

• DOI: 10.1117/12.2056702
• Publication Date: 2014-08-01T21:49:34Z
• Authors: Thierry Maciaszek; Anne Ealet; Knud Jahnke; Eric Prieto; Rémi Barbier; Yannick Mellier; Anne Costille; Franck Ducret; Christophe Fabron; Jean-Luc Gimenez; Robert Grange; Laurent Martin; Christelle Rossin; Tony Pamplona; Pascal Vola; Jean Claude Clémens; Gérard Smadja; Jérome Amiaux; Jean Christophe B...; Michel Berthe; Adriano De Rosa; Enrico Franceschi; Gianluca Morgante; Massimo Trifoglio; Luca Valenziano; Carlotta Bonoli; Favio Bortoletto; Maurizio D'Alessa...; Leonardo Corcione; Sebastiano Ligori; Bianca Garilli; Marco Riva; Frank Grupp; Carolin Vogel; Felix Hormuth; Gregor Seidel; Stefanie Wachter; Jose Javier Diaz; Ferran Grañena; Cristobal Padilla; Rafael Toledo; Per B. Lilje; Bjarte G. B. Solheim; Corinne Toulouse-...; Michael Andersen; Warren Holmes; Ulf Israelsson; Michael Seiffert; Carissa Weber; Augustyn Waczynski; René J. Laureijs; Giuseppe Racca; Jean-Christophe S...; Paolo Strada
• Keywords: Photometer

The Euclid mission objective is to understand why the expansion of Universe accelerating by mapping geometry dark investigating distance-redshift relationship and tracing evolution cosmic structures.The project part ESA's Cosmic Vision program with its launch planned for 2020.The NISP (Near Infrared Spectro-Photometer) one two instruments operating in near-IR spectral region (0.9-2µm) as a photometer spectrometer.The instrument composed of: -a cold (135K) optomechanical subsystem consisting SiC structure, an optical assembly (corrector camera lens), filter wheel mechanism, grism calibration unit thermal control system detection based on mosaic 16 Teledyne HAWAII2RG cooled 95K their front-end readout electronic 140K, integrated mechanical focal plane structure made Molybdenum Aluminum.The mounted warm (280K) data processing / detector that interfaces spacecraft via 1553 bus command Spacewire links science This presentation describes architecture at end phase B (Preliminary Design Review), expected performance, technological key challenges preliminary test results obtained demonstration model.