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QUBIC: A fizeau interferometer targeting primordial B-modes

Tartari, A., Aumont, J., Banfi, S., Battaglia, P., Battistelli, E. S., Bau, A., Belier, B., Bennett, D., Berge, L., Bernard, J. Ph., Bersanelli, M., Bigot-Sazy, M. A., Bleurvacq, N., Bordier, G., Brossard, J., Bunn, E. F., Buzi, D., Cammilleri, D., Cavaliere, F., Chanial, P., Chapron, C., Coppolecchia, A., D'Alessandro, G., De Bernardis, P., Decourcelle, T., Del Torto, F., De Petris, M., Dumoulin, L., Franceschet, C., Gault, A., Gayer, D., Gervasi, M., Ghribi, A., Giard, M., Giraud-Heraud, Y., Gradziel, M., Grandsire, L., Hamilton, J. Ch., Haynes, V., Holtzer, N., Kaplan, J., Korotkov, A., Lande, J., Lowitz, A., Maffei, B., Marnieros, S., Martino, J., Masi, S., McCulloch, M., Melhuish, S., Mennella, A., Montier, L., Murphy, A., Neel, D., Ng, M. W., O'Sullivan, C., Pajot, F., Passerini, A., Perbost, C., Piacentini, F., Piat, M., Piccirillo, L., Pisano, Giampaolo, Prele, D., Rambaud, D., Rigaut, O., Salatino, M., Schillaci, A., Scully, S., Stolpovskiy, M. M., Timbie, P., Tucker, G., Vigano, D., Voisin, F., Watson, B. and Zannoni, M. 2016. QUBIC: A fizeau interferometer targeting primordial B-modes. Journal of Low Temperature Physics 184 (3) , pp. 739-745. 10.1007/s10909-015-1398-3

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Q and U Bolometric Interferometer for Cosmology (QUBIC) is a Fizeau interferometer sensitive to linear polarisation, to be deployed at the Antarctic station of Dome C. This experiment in its final configuration will be operated at 97, 150 and 220 GHz and is intended to target CMB primordial B-modes in a multipole window 20<ℓ<15020<ℓ<150. A sensitivity of r=0.05r=0.05 (95 % CL) can be reached by the first module alone, after 2 years of operation. Here we review in particular its working principles, and we show how the QUBIC interferometric configuration can be considered equivalent to a pupil-plane filtered imaging system. In this context, we show how our instrument can be self-calibrated. Finally, we conclude by showing an overview of the first dual-band module (150/220 GHz), which will serve also as a demonstrator for the subsequent units, and review the technological choices we made for each subsystem, with particular emphasis on the detection system.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Cosmic microwave background, Polarisation, B-mode
Publisher: Springer
ISSN: 0022-2291
Date of Acceptance: 30 November 2015
Last Modified: 09 Jul 2019 14:47

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