F. Nati
Sapienza University of Rome
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Astroparticle Physics | 2011
E. S. Battistelli; A. Baù; D. Bennett; L. Bergé; J.-Ph. Bernard; P. de Bernardis; G. Bordier; A. Bounab; Eric Bréelle; Emory F. Bunn; M. Calvo; R. Charlassier; S. Collin; A. Coppolecchia; A. Cruciani; G. Curran; M. De Petris; L. Dumoulin; A. Gault; M. Gervasi; A. Ghribi; M. Giard; C. Giordano; Y. Giraud-Héraud; Marcin Gradziel; L. Guglielmi; Jean-Christophe Hamilton; Victor Haynes; J. Kaplan; Andrei Korotkov
The primordial B-mode polarisation of the Cosmic Microwave Background is the imprints of the gravitational wave background generated by inflation. Observing the B-mode is up to now the most direct way to constrain the physics of the primordial Universe, especially inflation. To detect these B-modes, high sensitivity is required as well as an exquisite control of systematics effects. To comply with these requirements, we propose a new instrument called QUBIC (Q and U Bolometric Interferometer for Cosmology) based on bolometric interferometry. The control of systematics is obtained with a close-packed interferometer while bolometers cooled to very low temperature allow for high sensitivity. We present the architecture of this new instrument, the status of the project and the self-calibration technique which allows accurate measurement of the instrumental systematic effects.
