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Exploring cosmic origins with CORE: the instrument

De Bernardis, P., Ade, Peter, Baselmans, J. J., Battistelli, E. S., Benoit, A., Bersanelli, M., Bideaud, A., Casas, F. J., Castellano, M.G., Pisano, Giampaolo and Tucker, Carole 2018. Exploring cosmic origins with CORE: the instrument. Journal of Cosmology and Astroparticle Physics , JCAP04(2018)015. 10.1088/1475-7516/2018/04/015

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We describe a space-borne, multi-band, multi-beam polarimeter aiming at a precise and accurate measurement of the polarization of the Cosmic Microwave Background. The instrument is optimized to be compatible with the strict budget requirements of a medium-size space mission within the Cosmic Vision Programme of the European Space Agency. The instrument has no moving parts, and uses arrays of diffraction-limited Kinetic Inductance Detectors to cover the frequency range from 60 GHz to 600 GHz in 19 wide bands, in the focal plane of a 1.2 m aperture telescope cooled at 40 K, allowing for an accurate extraction of the CMB signal from polarized foreground emission. The projected CMB polarization survey sensitivity of this instrument, after foregrounds removal, is 1.7 {\mu}K⋅arcmin. The design is robust enough to allow, if needed, a downscoped version of the instrument covering the 100 GHz to 600 GHz range with a 0.8 m aperture telescope cooled at 85 K, with a projected CMB polarization survey sensitivity of 3.2 {\mu}K⋅arcmin.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Additional Information: Please follow links to publisher page for full list of authors.
Publisher: IOP Publishing
ISSN: 1475-7516
Date of First Compliant Deposit: 25 July 2017
Date of Acceptance: 25 July 2017
Last Modified: 10 Mar 2020 13:54

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