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arXiv · 1811.02296

Thermal architecture for the QUBIC cryogenic receiver

Abstract

QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging; QUBIC has been designed to address this with a novel approach, namely bolometric interferometry. The receiver cryostat is exceptionally large and cools complex optical and detector stages to 40 K, 4 K, 1 K and 350 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.

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A. J. May, C. Chapron, G. Coppi, G. D'Alessandro, P. de Bernardis, S. Masi, S. Melhuish, M. Piat, L. Piccirillo, A. Schillaci, J. -P. Thermeau, P. Ade, G. Amico, D. Auguste, J. Aumont, S. Banfi, G. Barbara, P. Battaglia, E. Battistelli, A. Bau, B. Belier, D. Bennett, L. Berge, J. -Ph. Bernard, M. Bersanelli, M. -A. Bigot-Sazy, N. Bleurvacq, J. Bonaparte, J. Bonis, G. Bordier, E. Breelle, E. Bunn, D. Burke, D. Buzi, A. Buzzelli, F. Cavaliere, P. Chanial, R. Charlassier, F. Columbro, A. Coppolecchia, F. Couchot, R. D'Agostino, G. De Gasperis, M. De Leo, M. De Petris, A. Di Donato, L. Dumoulin, A. Etchegoyen, A. Fasciszewski, C. Franceschet, M. M. Gamboa Lerena, B. Garcia, X. Garrido, M. Gaspard, A. Gault, D. Gayer, M. Gervasi, M. Giard, Y. Giraud-Heraud, M. Gomez Berisso, M. Gonzalez, M. Gradziel, L. Grandsire, E. Guerrard, J. -Ch. Hamilton, D. Harari, V. Haynes, S. Henrot-Versille, D. T. Hoang, F. Incardona, E. Jules, J. Kaplan, A. Korotkov, C. Kristukat, L. Lamagna, S. Loucatos, T. Louis, A. Lowitz, V. Lukovic, R. Luterstein, B. Maffei, S. Marnieros, A. Mattei, M. A. McCulloch, M. C. Medina, L. Mele, A. Mennella, L. Montier, L. M. Mundo, J. A. Murphy, J. D. Murphy, C. O'Sullivan, E. Olivieri, A. Paiella, F. Pajot, A. Passerini, H. Pastoriza, A. Pelosi, C. Perbost, O. Perdereau. 2018-11-06. Thermal architecture for the QUBIC cryogenic receiver. https://arxiv.org/abs/1811.02296

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