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Proceedings Paper

PAUCam filter interchange system
Author(s): F. Madrid; O. Ballester; L. Cardiel-Sas; R. Casas; F. J. Castander; J. Castilla; J. de Vicente; E. Fernández; E. Gaztañaga; F. Grañena; J. Jiménez; M. Maiorino; P. Martí; R. Miquel; E. Sánchez; S. Serrano; I. Sevilla; N. Tonello
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Paper Abstract

The Physics of the Accelerating Universe (PAU) is a new project whose main goal is to study dark energy surveying the galaxy distribution. For that purpose we need to determine the galaxy redshifts. The most accurate way to determine the redshift of a galaxy and measure its spectral energy distribution (SED) is achieved with spectrographs. The PAU collaboration is building an instrument (PAUCam) devoted to perform a large area survey for cosmological studies using an alternative approach. SEDs are sampled and redshifts determined using narrow band filter photometry. For efficiency and manufacturability considerations, the filters need to be placed close to the CCD detector surfaces on segmented filter trays. The most innovative element of PAUCam is a set of 16 different exchangeable trays to support the filters arranged in a jukebox-like changing mechanism inside the cryostat. The device is designed to operate within the range of temperatures from 150K to 300K at the absolute pressure of 10-8mbar, being class-100 compliant.

Paper Details

Date Published: 20 July 2010
PDF: 7 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77353R (20 July 2010); doi: 10.1117/12.857135
Show Author Affiliations
F. Madrid, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
O. Ballester, Institut de Física d'Altes Energies (Spain)
L. Cardiel-Sas, Institut de Física d'Altes Energies (Spain)
R. Casas, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
F. J. Castander, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
J. Castilla, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
J. de Vicente, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
E. Fernández, Institut de Física d'Altes Energies (Spain)
E. Gaztañaga, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
F. Grañena, Institut de Física d'Altes Energies (Spain)
J. Jiménez, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
M. Maiorino, Institut de Física d'Altes Energies (Spain)
P. Martí, Institut de Física d'Altes Energies (Spain)
R. Miquel, Institut de Física d'Altes Energies (Spain)
E. Sánchez, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
S. Serrano, Institut de Ciències de l'Espai, CSIC/IEEC (Spain)
I. Sevilla, Ctr. de Investigaciones Energéticas, Medioambientales y Tecnológicas (Spain)
N. Tonello, Port d'Informació Científica (Spain)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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