QUBIC III: Laboratory Characterization
Abstract
A prototype version of the Q & U Bolometric Interferometer for Cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology in Paris. We report the results of this Technological Demonstrator which successfully shows the feasibility of the principle of Bolometric Interferometry. Characterization of QUBIC includes the measurement of the synthesized beam, the measurement of interference fringes, and the measurement of polarization performance. A modulated and frequency tunable millimetre-wave source in the telescope far-field is used to simulate a point source. The QUBIC pointing is scanned across the point source to produce beam maps. Polarization modulation is measured using a rotating Half Wave Plate. The measured beam matches well to the theoretical simulations and gives QUBIC the ability to do spectro imaging. The polarization performance is excellent with less than 0.5\% cross-polarization rejection. QUBIC is ready for deployment on the high altitude site at Alto Chorillo, Argentina to begin scientific operations.
Keywords
Cite
@article{arxiv.2008.10056,
title = {QUBIC III: Laboratory Characterization},
author = {S. A. Torchinsky and J. -Ch. Hamilton and M. Piat and E. S. Battistelli and C. Chapron and G. D'Alessandro and P. de Bernardis and M. De Petris and M. M. Gamboa Lerena and M. González and L. Grandsire and S. Masi and S. Marnieros and A. Mennella and L. Mousset and J. D. Murphy and D. Prêle and G. Stankowiak and C. O'Sullivan and A. Tartari and J. -P. Thermeau and F. Voisin and M. Zannoni and P. Ade and J. G. Alberro and A. Almela and G. Amico and L. H. Arnaldi and D. Auguste and J. Aumont and S. Azzoni and S. Banfi and B. Bélier and A. Baù and D. Bennett and L. Bergé and J. -Ph. Bernard and M. Bersanelli and M. -A. Bigot-Sazy and J. Bonaparte and J. Bonis and E. Bunn and D. Burke and D. Buzi and F. Cavaliere and P. Chanial and R. Charlassier and A. C. Cobos Cerutti and F. Columbro and A. Coppolecchia and G. De Gasperis and M. De Leo and S. Dheilly and C. Duca and L. Dumoulin and A. Etchegoyen and A. Fasciszewski and L. P. Ferreyro and D. Fracchia and C. Franceschet and K. M. Ganga and B. García and M. E. García Redondo and M. Gaspard and D. Gayer and M. Gervasi and M. Giard and V. Gilles and Y. Giraud-Heraud and M. Gómez Berisso and M. Gradziel and M. R. Hampel and D. Harari and S. Henrot-Versillé and F. Incardona and E. Jules and J. Kaplan and C. Kristukat and L. Lamagna and S. Loucatos and T. Louis and B. Maffei and W. Marty and A. Mattei and A. May and M. McCulloch and L. Mele and D. Melo and L. Montier and L. M. Mundo and J. A. Murphy and F. Nati and E. Olivieri and C. Oriol and A. Paiella and F. Pajot and A. Passerini and H. Pastoriza and A. Pelosi and C. Perbost and M. Perciballi and F. Pezzotta and F. Piacentini and L. Piccirillo and G. Pisano and M. Platino and G. Polenta and R. Puddu and D. Rambaud and P. Ringegni and G. E. Romero and E. Rasztocky and J. M. Salum and A. Schillaci and C. Scóccola and S. Scully and S. Spinelli and M. Stolpovskiy and A. D. Supanitsky and P. Timbie and M. Tomasi and G. Tucker and C. Tucker and D. Viganò and N. Vittorio and F. Wicek and M. Wright and A. Zullo},
journal= {arXiv preprint arXiv:2008.10056},
year = {2022}
}
Comments
Part of a series of 8 papers on QUBIC accepted by JCAP for a special issue: https://iopscience.iop.org/journal/1475-7516/page/QUBIC_status_and_forecast