The QUBIC instrument for CMB polarization measurements

L Mele , P Ade , J Alberro , A Almela , G Amico , L Arnaldi , D Auguste (1) , J Aumont (2) , S Azzoni , S Banfi , E Battistelli , A Baù , B Bèlier (3) , D Bennett , L Bergé (4) , J-Ph Bernard (2) , M Bersanelli , M-A Bigot-Sazy (5) , N Bleurvacq (5) , J Bonaparte , J Bonis (1) , A Bottani , E Bunn , D Burke , D Buzi , F Cavaliere , P Chanial (5) , C Chapron (5) , R Charlassier (5) , F Columbro , A Coppolecchia , G D’alessandro , P De Bernardis , G De Gasperis , M De Leo , M De Petris , S Dheilly (5) , L Dumoulin (6) , A Etchegoyen , A Fasciszewski , L Ferreyro , D Fracchia , C Franceschet , M Lerena , K Ganga (5) , B García (5) , M Redondo , M Gaspard (1) , D Gayer , M Gervasi , Martin Giard (2) , V Gilles , Y Giraud-Heraud (5) , M Gómez Berisso , M Gonzalez , M Gradziel , L Grandsire (5) , J -Ch Hamilton (5) , D Harari , S Henrot-Versillé (1) , D Hoang (5) , F Incardona , E Jules (1) , J. Kaplan (5) , C Kristukat , L Lamagna , S Loucatos (5) , T Louis (1) , B Maffei (7) , S Marnieros (6) , W Marty (2) , S Masi , A Mattei , A May , M Mcculloch , S Melhuish , A Mennella , L Montier (2) , L Mousset (5) , L Mundo , J Murphy , F Nati , E Olivieri (6) , C Oriol (6) , C O’sullivan , A Paiella , F Pajot (2) , A Passerini , H Pastoriza , A Pelosi , C Perbost (5) , M Perciballi , F Pezzotta , F Piacentini , M. Piat (5) , L Piccirillo , G Pisano , M Platino , G Polenta , D Prêle (5) , R Puddu , D Rambaud , P Ringegni , G Romero , M Salatino , J Salum , A Schillaci , C Scóccola , S Scully , S Spinelli , G Stankowiak (5) , M Stolpovskiy (5) , A Tartari , J-P Thermeau (5) , P Timbie , M Tomasi , S Torchinsky (5) , M. Tristram (1) , G Tucker , C Tucker , D Viganò , N Vittorio , F Voisin (5) , F Wicek (1) , M Zannoni , A Zullo

1 LAL - Laboratoire de l'Accélérateur Linéaire
2 IRAP - Institut de recherche en astrophysique et planétologie
3 C2N - Centre de Nanosciences et de Nanotechnologies
4 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
5 APC (UMR_7164) - AstroParticule et Cosmologie
6 CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
7 IAS - Institut d'astrophysique spatiale

Measurements of cosmic microwave background (CMB) polarization may reveal the presence of a background of gravitational waves produced during cosmic inflation, providing thus a test of inflationary models. The Q&U Bolometric Interferometer for Cosmology (QUBIC) is an experiment designed to measure the CMB polarization. It is based on the novel concept of bolometric interferometry, which combines the sensitivity of bolometric detectors with the properties of beam synthesis and control of calibration offered by interferometers. To modulate and extract the input polarized signal of the CMB, QUBIC exploits Stokes polarimetry based on a rotating half-wave plate (HWP). In this work, we illustrate the design of the QUBIC instrument, focusing on the polarization modulation system, and we present preliminary results of beam calibrations and the performance of the HWP rotator at 300 K.

Domaines: Astrophysique [astro-ph]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

L Mele, P Ade, J Alberro, A Almela, G Amico, et al.. The QUBIC instrument for CMB polarization measurements. 10th Young Researcher Meeting, Jun 2019, Rome, Italy. pp.012016, ⟨10.1088/1742-6596/1548/1/012016⟩. ⟨hal-02999057⟩