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    QUBIC VIII: Optical design and performance


    O'Sullivan, Créidhe, De Petris, M., Amico, G., Battistelli, E.S., de Bernardis, P., Burke, D., Buzi, D., Chapron, C., Conversi, L., D'Alessandro, G., De Leo, M., Gayer, D., Grandsire, L., Hamilton, J.-Ch., Marnieros, S., Masi, S., Mattei, A., Mennella, A., Mousset, L., Murphy, J.D., Pelosi, A., Perciballi, M., Piat, M., Scully, S., Tartari, A., Torchinsky, S.A., Voisin, F., Zannoni, M., Zullo, A., Ade, P., Alberro, J.G., Almela, A., Arnaldi, L.H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Baù, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J.-Ph., Bersanelli, M., Bigot-Sazy, M.-A., Bonaparte, J., Bonis, J., Bunn, E., Cavaliere, F., Chanial, P., Charlassier, R., Cobos Cerutti, A.C., Columbro, F., Coppolecchia, A., De Gasperis, G., Dheilly, S., Duca, C., Dumoulin, L., Etchegoyen, A., Fasciszewski, A., Ferreyro, L.P., Fracchia, D., Franceschet, C., Gamboa Lerena, M.M., Ganga, K.M., García, B., García Redondo, M.E., Gaspard, M., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Gómez Berisso, M., González, M., Gradziel, M., Hampel, M.R., Harari, D., Henrot-Versillé, S., Incardona, F., Jules, E., Kaplan, J., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Maffei, B., Marty, W., May, A., McCulloch, M., Mele, L., Melo, D., Montier, L., Mundo, L.M., Murphy, J.A., Nati, F., Olivieri, E., Oriol, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Perbost, C., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Prêle, D., Puddu, R., Rambaud, D., Rasztocky, E., Ringegni, P., Romero, G.E., Salum, J.M., Schillaci, A., Scóccola, C.G., Spinelli, S., Stankowiak, G., Stolpovskiy, M., Supanitsky, A.D., Thermeau, J.-P., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Viganò, D., Vittorio, N., Wicek, F. and Wright, M. (2022) QUBIC VIII: Optical design and performance. Journal of Cosmology and Astroparticle Physics, 41. pp. 1-34. ISSN 1475-7516

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    Abstract

    The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarization anisotropies [1] in the CMB at angular scales around the ℓ ≃100 recombination peak. Systematic errors make ground-based observations of B modes at millimetre wavelengths very challenging and QUBIC mitigates these problems in a somewhat complementary way to other existing or planned experiments using the novel technique of bolometric interferometry. This technique takes advantage of the sensitivity of an imager and the systematic error control of an interferometer. A cold reflective optical combiner superimposes the re-emitted beams from 400 aperture feedhorns on two focal planes. A shielding system composed of a fixed groundshield, and a forebaffle that moves with the instrument, limits the impact of local contaminants. The modelling, design, manufacturing and preliminary measurements of the optical components are described in this paper.
    Item Type: Article
    Keywords: CMBR detectors; CMBR experiments; CMBR polarisation; gravitational waves; CMBR polarization;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 17824
    Identification Number: 10.1088/1475-7516/2022/04/041
    Depositing User: Dr. Créidhe O'Sullivan
    Date Deposited: 14 Nov 2023 11:44
    Journal or Publication Title: Journal of Cosmology and Astroparticle Physics
    Publisher: IOP Publishing
    Refereed: Yes
    Related URLs:
    URI: https://mural.maynoothuniversity.ie/id/eprint/17824
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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