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Proceedings Paper

Final acceptance of the 200 GHz telescope unit for the QUIJOTE CMB experiment
Author(s): R. Sanquirce-García; I. Sainz-Pardo; B. Etxeita-Arriaga; Gaizka Murga-Llano; E. Fernandez-Santos; V. Sánchez-de-la-Rosa; T. A. Viera-Curbelo; F. Gómez-Reñasco; M. Aguiar-González; M. R. Pérez de Taoro; J. A. Rubiño-Martín
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Paper Abstract

The QUIJOTE (Q-U-I JOint TEnerife) experiment is a scientific collaboration, led by the Instituto de Astrofísica de Canarias (IAC), with the aim of measuring the polarization of the Cosmic Microwave Background (CMB) in the frequency range 10-40 GHz and at large angular scales (around 1°). The project is composed of 2 telescopes and 3 instruments, located in Teide Observatory (Tenerife, Spain). Idom´s contribution for this project is divided in two phases. Phase I consisted on the design, assembly and factory testing of the first telescope (2008), the integration and functional tests for the 5 polarimeters of the first instrument (2009), and the design and construction supervision of the building which protects both telescopes (2009), including the installation and commissioning of the mechanism for domes apertures. Phase II comprised the design, factory assembly and testing, transport and final commissioning on site of the second telescope, which finished in January 2015. The optical design of both telescopes should allow them to reach up to 200 GHz. The required opto-mechanical performance was checked under nominal conditions, reaching a pointing and tracking accuracy lower than 5 arcsec in both axes, 8 times better than specified. Particular inspections and tests were carried out for critical systems, as the rotary joint that transmits fluid, power and signal to the rotary elements, or for the safety system to ensure personnel and hardware protection under emergency conditions. This paper contains a comprehensive description of the power electronics and acquisition/control design required for safely operation under nominal and emergency conditions, as well as a detailed description of the factory and observatory tests required for the final acceptance of the telescope

Paper Details

Date Published: 27 July 2016
PDF: 9 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99064N (27 July 2016); doi: 10.1117/12.2232644
Show Author Affiliations
R. Sanquirce-García, IDOM Ingenieria y Consultoria S.A. (Spain)
I. Sainz-Pardo, IDOM Ingenieria y Consultoria S.A. (Spain)
B. Etxeita-Arriaga, IDOM Ingenieria y Consultoria S.A. (Spain)
Gaizka Murga-Llano, IDOM Ingenieria y Consultoria S.A. (Spain)
E. Fernandez-Santos, IDOM Ingenieria y Consultoria S.A. (Spain)
V. Sánchez-de-la-Rosa, Instituto de Astrofísica de Canarias (Spain)
T. A. Viera-Curbelo, Instituto de Astrofísica de Canarias (Spain)
F. Gómez-Reñasco, Instituto de Astrofísica de Canarias (Spain)
M. Aguiar-González, Instituto de Astrofísica de Canarias (Spain)
M. R. Pérez de Taoro, Instituto de Astrofísica de Canarias (Spain)
J. A. Rubiño-Martín, Instituto de Astrofísica de Canarias (Spain)


Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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