Abstract
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 \(20<\ell <150\). A sensitivity of \(r = 0.05\) (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.
Similar content being viewed by others
References
D. Baumann, et al. arXiv:0811.3919v2 (2009)
The QUBIC Collaboration, Astropart. Phys. 34, 705–716 (2011)
A. Ghribi et al., J. Low Temp. Phys. 176, 698–704 (2014)
The BICEP2 Collaboration, PRL 112, 241101 (2014)
BICEP2/Keck/Planck Collaborations, PRL 114, 101301 (2015)
M.-A. Bigot-Sazy, A&A 550, 59B (2013)
G. Pisano, M.W. Ng, V. Haynes, B. Maffei, Prog. Electromagn. Res. M 25, 101–114 (2012)
C. Perbost, et al., A 248 TES Array for the detection of CMB B-mode polarization. J. Low Temp. Phys. (2015, submitted)
D. Prêle, et al., A 128 multiplexing rate time domain SQUID multiplexer. J. Low Temp. Phys. (2015, submitted)
Acknowledgments
We acknowledge the financial support from UnivEarthS Labex programme of Sorbonne Paris Cité (ANR-10-LABX-0023 and ANR-11-IDEX-0005-02), the CNRS, the ANR and the Region Ile de France that is supporting us through the DIM-ACAV programme. We acknowledge also the financial support from PNRA.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tartari, A., Aumont, J., Banfi, S. et al. QUBIC: A Fizeau Interferometer Targeting Primordial B-Modes. J Low Temp Phys 184, 739–745 (2016). https://doi.org/10.1007/s10909-015-1398-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10909-015-1398-3