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QUBIC Technological Design Report

Abstract : QUBIC is an instrument aiming at measuring the B mode polarisation anisotropies at medium scales angular scales (30-200 multipoles). The search for the primordial CMB B-mode polarization signal is challenging, because of many difficulties: smallness of the expected signal, instrumental systematics that could possibly induce polarization leakage from the large E signal into B, brighter than anticipated polarized foregrounds (dust) reducing to zero the initial hope of finding sky regions clean enough to have a direct primordial B-modes observation. The QUBIC instrument is designed to address all aspects of this challenge with a novel kind of instrument, a Bolometric Interferometer, combining the background-limited sensitivity of Transition-Edge-Sensors and the control of systematics allowed by the observation of interference fringe patterns, while operating at two frequencies to disentangle polarized foregrounds from primordial B mode polarization. Its characteristics are described in details in this Technological Design Report.
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Contributor : Sabine Starita Connect in order to contact the contributor
Submitted on : Thursday, September 15, 2016 - 12:16:06 PM
Last modification on : Tuesday, November 23, 2021 - 9:48:08 AM

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  • HAL Id : in2p3-01366770, version 1
  • ARXIV : 1609.04372




J. Aumont, S. Banfi, P. Battaglia, E. S. Battistelli, A. Baù, et al.. QUBIC Technological Design Report. [Technical Report] Q&U Bolometric Interferometer for Cosmology. 2016. ⟨in2p3-01366770⟩



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