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

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; Rubiño-Martín 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 Astrofísica 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 The microwave complex correlator design has been replaced by a simple correlator design with a digital back-end based on the latest Xilinx FPGAs (ZCU111).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.

Otras comunicaciones del congreso o articulos relacionados con autores/as de la Universidad de Cantabria

 Autoría: Hoyland R.J., Rubino-Martin J.A., Aguiar-Gonzalez M., Alonso-Arias P., Artal E., Ashdown M., Barreiro R.B., Casas F.J., Colodro-Conde C., De La Hoz E., Fernandez-Torreiro M., Fuerte-Rodriguez P.A., Genova-Santos R.T., Gomez-Renasco M.F., Gonzalez-Carretero E.D., Gonzalez-Gonzalez R., Guidi F., Hernandez-Monteagudo C., Herranz D., Lasenby A.N., Lopez-Caraballo C.H., Martinez-Gonzalez E., Oria-Carreras A., Peel M.W., Perez-De-Taoro A., Perez-Lemus

 Congreso: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy (11º : 2022 : Montreal, Canadá)

Editorial: SPIE Society of Photo-Optical Instrumentation Engineers

 Fecha de publicación: 31/08/2022

Nº de páginas: 19

Tipo de publicación: Comunicación a Congreso

 DOI: 10.1117/12.2640826

ISSN: 0277-786X,1996-756X

Proyecto español: AYA2017-84185-P

Autores/as

ROGER HOYLAND

JOSE ALBERTO RUBIÑO MARTIN

AGUIAR GONZÁLEZ, MARTA

ALONSO ARIAS, PAZ

ASHDOWN, MARK

COLODRO CONDE, CARLOS

ELENA DE LA HOZ LOPEZ-COLLADO

FERNÁNDEZ TORREIRO, MATEO

FUERTE RODRÍGUEZ, PABLO ALBERTO

GÉNOVA SANTOS, RICARDO T.

GÓMEZ REÑASCO, MARÍA FRANCISCA

GONZÁLEZ CARRETERO, EDUARDO DAVID

GONZÁLEZ GONZÁLEZ, RAÚL

GUIDI, FREDERICA

CARLOS HERNANDEZ MONTEAGUDO