The new multi-frequency instrument (MFI2) for the QUIJOTE facility in Tenerife

Roger J. Hoyland; José Alberto Rubiño-Martín; Marta Aguiar-Gonzalez; Paz Alonso-Arias; Eduardo Artal; Mark Ashdown; R. Belén Barreiro; Francisco J. Casas; Carlos Colodro-Conde; Elena de la Hoz; Mateo Fernández-Torreiro; Pablo A. Fuerte-Rodriguez; Ricardo T. Génova-Santos; Maria F. Gómez-Reñasco; Eduardo D. González-Carretero; Raul González-González; Frederica Guidi; Carlos Hernández-Monteagudo; Diego Herranz; Anthony N. Lasenby; Carlos H. López-Caraballo; Enríque Martínez-Gonzalez; Asier Oria-Carreras; Michael W. Peel; Angeles Pérez-de-Taoro; Cristina Pérez-Lemus; Lucio Piccirillo; Rafael Rebolo; Jesús Salvador Rodríguez-Díaz; Rafael Toledo-Moreo; Afrodisio Vega-Moreno; Patricio Vielva; Robert Anthony Watson; Antonio Zamora-Jimenez

doi:10.1117/12.2640826

31 August 2022 The new multi-frequency instrument (MFI2) for the QUIJOTE facility in Tenerife

Roger J. Hoyland, José Alberto Rubiño-Martín, Marta Aguiar-Gonzalez, Paz Alonso-Arias, Eduardo Artal, Mark Ashdown, R. Belén Barreiro, Francisco J. Casas, Carlos Colodro-Conde, Elena de la Hoz, Mateo Fernández-Torreiro, Pablo A. Fuerte-Rodriguez, Ricardo T. Génova-Santos, Maria F. Gómez-Reñasco, Eduardo D. González-Carretero, Raul González-González, Frederica Guidi, Carlos Hernández-Monteagudo, Diego Herranz, Anthony N. Lasenby, Carlos H. López-Caraballo, Enríque Martínez-Gonzalez, Asier Oria-Carreras, Michael W. Peel, Angeles Pérez-de-Taoro, Cristina Pérez-Lemus, Lucio Piccirillo, Rafael Rebolo, Jesús Salvador Rodríguez-Díaz, Rafael Toledo-Moreo, Afrodisio Vega-Moreno, Patricio Vielva, Robert Anthony Watson, Antonio Zamora-Jimenez

Author Affiliations +

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 1219033 (2022) https://doi.org/10.1117/12.2640826
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

The QUIJOTE (Q-U-I joint Tenerife) experiment combines the operation of two radio-telescopes and three instruments working in the microwave bands 10–20 GHz, 26–36 GHz and 35–47 GHz at the Teide Observatory, Tenerife, and has already been presented in previous SPIE meetings (Hoyland, R. J. et al, 2012; Rubi˜no-Mart´ın et al., 2012). The Cosmology group at the IAC have designed a new upgrade to the MFI instrument in the band 10–20 GHz. The aim of the QUIJOTE telescopes is to characterise the polarised emission of the cosmic microwave background (CMB), as well as galactic and extra-galactic sources, at medium and large angular scales. This MFI2 will continue the survey at even higher sensitivity levels. The MFI2 project led by the Instituto de Astrof´ısica de Canarias (IAC) consists of five polarimeters, three of them operating in the sub-band 10–15 GHz, and two in the sub-band 15–20 GHz. The MFI2 instrument is expected to be a full two–three times more sensitive than the former MFI. The microwave complex correlator design has been replaced by a simple correlator design with a digital back-end based on the latest Xilinx FPGAs (ZCU111). During the first half of 2019 the manufacture of the new cryostat was completed and since then the opto-mechanical components have been designed and manufactured. It is expected that the cryogenic front-end will be completed by the end of 2022 along with the FPGA acquisition and observing system. This digital system has been employed to be more robust against stray ground-based and satellite interference, having a frequency resolution of 1 MHz

Conference Presentation

Citation Download Citation

Roger J. Hoyland, José Alberto Rubiño-Martín, Marta Aguiar-Gonzalez, Paz Alonso-Arias, Eduardo Artal, Mark Ashdown, R. Belén Barreiro, Francisco J. Casas, Carlos Colodro-Conde, Elena de la Hoz, Mateo Fernández-Torreiro, Pablo A. Fuerte-Rodriguez, Ricardo T. Génova-Santos, Maria F. Gómez-Reñasco, Eduardo D. González-Carretero, Raul González-González, Frederica Guidi, Carlos Hernández-Monteagudo, Diego Herranz, Anthony N. Lasenby, Carlos H. López-Caraballo, Enríque Martínez-Gonzalez, Asier Oria-Carreras, Michael W. Peel, Angeles Pérez-de-Taoro, Cristina Pérez-Lemus, Lucio Piccirillo, Rafael Rebolo, Jesús Salvador Rodríguez-Díaz, Rafael Toledo-Moreo, Afrodisio Vega-Moreno, Patricio Vielva, Robert Anthony Watson, and Antonio Zamora-Jimenez "The new multi-frequency instrument (MFI2) for the QUIJOTE facility in Tenerife", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 1219033 (31 August 2022); https://doi.org/10.1117/12.2640826

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