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Proceedings Paper

A 200-GHz telescope unit for the QUIJOTE CMB Experiment
Author(s): Rubén Sanquirce; Borja Etxeita; Gaizka Murga; Esther Fernandez; Iñaki Sainz; Vicente Sánchez; Teodora A. Viera-Curbelo; María F. Gómez; Marta Aguiar-Gonzalez; Roger J. Hoyland; Ángeles R. Pérez de Taoro; Afrodisio Vega; Rafael Rebolo-López; Jose Alberto Rubiño
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Paper Abstract

Experiment QUIJOTE (Q-U-I JOint TEnerife) is a scientific collaboration, leaded by the Instituto de Astrofísica de Canarias (IAC), which can measure the polarization of the Cosmic Microwave Background (CMB) in the range of frequency up to 200 GHz, at angular scales of 1°. The project is composed of 2 telescopes and 3 instruments, located in Teide Observatory (Tenerife, Spain).

After the successful delivery of the first telescope (operative since 2012), Idom is currently involved on the turn key supply of the second telescope (phase II). The work started in June 2013 and it will be completed in a challenging period of 12 months (operative at the beginning of July 2014), including design, factory assembly and testing, transport and final commissioning on site.

This second unit will improve the opto-mechanical performance and maintainability. The telescope will have an unlimited rotation capacity in azimuth axis and a range of movement between 25°-95° in elevation axis. An integrated rotary joint will transmit fluid, power and signal to the rotary elements. The pointing and tracking accuracy will be significantly below to specification: 1.76 arcmin and 44 arcsec, respectively.

This project completes Idom´s contribution during phase I, which also comprises the integration and functional tests for the 5 polarimeters of the first instrument in Bilbao headquarters, and the design and supervision of the building which protects both telescopes, including the installation and commissioning of the mechanism for shutters aperture.

Paper Details

Date Published: 22 July 2014
PDF: 12 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 914524 (22 July 2014); doi: 10.1117/12.2056615
Show Author Affiliations
Rubén Sanquirce, IDOM Ingenieria y Consultoria S.A. (Spain)
Borja Etxeita, IDOM Ingenieria y Consultoria S.A. (Spain)
Gaizka Murga, IDOM Ingenieria y Consultoria S.A. (Spain)
Esther Fernandez, IDOM Ingenieria y Consultoria S.A. (Spain)
Iñaki Sainz, IDOM Ingenieria y Consultoria S.A. (Spain)
Vicente Sánchez, Instituto de Astrofísica de Canarias (Spain)
Teodora A. Viera-Curbelo, Instituto de Astrofísica de Canarias (Spain)
María F. Gómez, Instituto de Astrofísica de Canarias (Spain)
Marta Aguiar-Gonzalez, Instituto de Astrofísica de Canarias (Spain)
Roger J. Hoyland, Instituto de Astrofísica de Canarias (Spain)
Ángeles R. Pérez de Taoro, Instituto de Astrofísica de Canarias (Spain)
Afrodisio Vega, Instituto de Astrofísica de Canarias (Spain)
Rafael Rebolo-López, Instituto de Astrofísica de Canarias (Spain)
Jose Alberto Rubiño, Instituto de Astrofísica de Canarias (Spain)


Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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