학술논문
Exploring cosmic origins with CORE: The instrument
Document Type
article
Author
De Bernardis, P; Ade, PAR; Baselmans, JJA; Battistelli, ES; Benoit, A; Bersanelli, M; Bideaud, A; Calvo, M; Casas, FJ; Castellano, MG; Catalano, A; Charles, I; Colantoni, I; Columbro, F; Coppolecchia, A; Crook, M; D'Alessandro, G; Petris, MD; Delabrouille, J; Doyle, S; Franceschet, C; Gomez, A; Goupy, J; Hanany, S; Hills, M; Lamagna, L; Macias-Perez, J; Maffei, B; Martin, S; Martinez-Gonzalez, E; Masi, S; McCarthy, D; Mennella, A; Monfardini, A; Noviello, F; Paiella, A; Piacentini, F; Piat, M; Pisano, G; Signorelli, G; Tan, CY; Tartari, A; Trappe, N; Triqueneaux, S; Tucker, C; Vermeulen, G; Young, K; Zannoni, M; Achúcarro, A; Allison, R; Artall, E; Ashdown, M; Ballardini, M; Banday, AJ; Banerji, R; Bartlett, J; Bartolo, N; Basak, S; Bonaldi, A; Bonato, M; Borrill, J; Bouchet, F; Boulanger, F; Brinckmann, T; Bucher, M; Burigana, C; Buzzelli, A; Cai, ZY; Carvalho, CS; Challinor, A; Chluba, J; Clesse, S; Gasperis, GD; Zotti, GD; Valentino, ED; Diego, JM; Errard, J; Feeney, S; Fernandez-Cobos, R; Finelli, F; Forastieri, F; Galli, S; Génova-Santos, R; Gerbino, M; González-Nuevo, J; Hagstotz, S; Greenslade, J; Handley, W; Hernández-Monteagudo, C; Hervias-Caimapo, C; Hivon, E; Kiiveri, K; Kisner, T; Kitching, T; Kunz, M; Kurki-Suonio, H; Lasenby, A; Lattanzi, M; Lesgourgues, J; Lewis, A
Source
Journal of Cosmology and Astroparticle Physics. 2018(4)
Subject
Language
Abstract
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 μKċarcmin. 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 μKċarcmin.