학술논문
QUBIC VII: The feedhorn-switch system of the technological demonstrator
Document Type
Working Paper
Author
Cavaliere, F.; Mennella, A.; Zannoni, M.; Battaglia, P.; Battistelli, E. S.; Burke, D.; D'Alessandro, G.; de Bernardis, P.; De Petris, M.; Franceschet, C.; Grandsire, L.; Hamilton, J. -Ch.; Maffei, B.; Manzan, E.; Marnieros, S.; Masi, S.; O'Sullivan, C.; Passerini, A.; Pezzotta, F.; Piat, M.; Tartari, A.; Torchinsky, S. A.; Viganò, D.; Voisin, F.; Ade, P.; Alberro, J. G.; Almela, A.; Amico, G.; Arnaldi, L. H.; Auguste, D.; Aumont, J.; Azzoni, S.; Bélier, B.; Baù, A.; Banfi, S.; Bennett, D.; Bergé, L.; Bernard, J. -Ph.; Bersanelli, M.; Bigot-Sazy, M. -A.; Bonaparte, J.; Bonis, J.; Bunn, E.; Buzi, D.; Chanial, P.; Chapron, C.; Charlassier, R.; Cerutti, A. C. Cobos; Columbro, F.; Coppolecchia, A.; De Gasperis, G.; De Leo, M.; Dheilly, S.; Duca, C.; Dumoulin, L.; Etchegoyen, A.; Fasciszewski, A.; Ferreyro, L. P.; Fracchia, D.; Berisso, M. Gómez; Lerena, M. M. Gamboa; Ganga, K. M.; García, B.; Redondo, M. E. García; Gaspard, M.; Gayer, D.; Gervasi, M.; Giard, M.; Gilles, V.; Giraud-Heraud, Y.; 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.; Marty, W.; Mattei, A.; May, A.; McCulloch, M.; Mele, L.; Melo, D.; Montier, L.; Mousset, L.; Mundo, L. M.; Murphy, J. A.; Murphy, J. D.; Nati, F.; Olivieri, E.; Oriol, C.; Pagana, E.; Paiella, A.; Pajot, F.; Pastoriza, H.; Pelosi, A.; Perbost, C.; Perciballi, M.; 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.; Scóccola, C.; Schillaci, A.; Scully, S.; Spinelli, S.; Stankowiak, G.; Stolpovskiy, M.; Supanitsky, A. D.; Thermeau, J. -P.; Timbie, P.; Tomasi, M.; Tucker, G.; Tucker, C.; Vittorio, N.; Wicek, F.; Wright, M.; Zullo, A.
Source
Subject
Language
Abstract
We present the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the $Q$\&$U$ Bolometric Interferometer for Cosmology). This system is constituted of 64 back-to-back dual-band (150\,GHz and 220\,GHz) corrugated feed-horns interspersed with mechanical switches used to select desired baselines during the instrument self-calibration. We manufactured the horns in aluminum platelets milled by photo-chemical etching and mechanically tightened with screws. The switches are based on steel blades that open and close the wave-guide between the back-to-back horns and are operated by miniaturized electromagnets. We also show the current development status of the feedhorn-switch system for the QUBIC full instrument, based on an array of 400 horn-switch assemblies.
Comment: 30 pages, 28 figures. Accepted for submission to JCAP
Comment: 30 pages, 28 figures. Accepted for submission to JCAP