@conference{10902/28048,
year = {2022},
month = {8},
url = {https://hdl.handle.net/10902/28048},
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 The microwave complex correlator design has been replaced by a simple correlator design with a digital back-end based on the latest Xilinx FPGAs (ZCU111).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.},
organization = {The MFI2 instrument is being developed by the Instituto de Astrofisica de Canarias (IAC), with an instrumental participation from the Universidad Politecnica de Cartagena (UPCT). Partial financial support is provided by the Spanish Ministry of Science and Innovation (MICINN), under the projects AYA2017-84185-P, IACA15-BE-3707, EQC2018-004918-P and the FEDER Agreement INSIDE-OOCC (ICTS-2019-03-IAC-12). We also acknowledge
financial support of the Severo Ochoa Programs SEV-2015-0548 and CEX2019-000920-S.},
publisher = {SPIE Society of Photo-Optical Instrumentation Engineers},
publisher = {Proceedings of SPIE, 2022, 12190, 1219033},
publisher = {Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, Montreal, Quebec, 2022},
title = {The new multi-frequency instrument (MFI2) for the QUIJOTE facility in Tenerife},
author = {Hoyland, Roger J. and Rubiño Martín, José Alberto and Aguiar González, Marta and Alonso Arias, Paz and Artal Latorre, Eduardo and Ashdown, Mark and Barreiro Vilas, Rita Belén and Casas Reinares, Francisco Javier and Colodro Conde, Carlos and Hoz López-Collado, Elena de la and Fernández Torreiro, Mateo and Fuerte Rodríguez, Pablo Alberto and Génova Santos, Ricardo Tanausú and Gómez Reñasco, María Francisca and González Carretero, Eduardo David and González González, Raúl and Guidi, Federica and Hernández Monteagudo, Carlos and Herranz Muñoz, Diego and Martínez González, Enrique and Vielva Martínez, Patricio},
}