QUBIC VII: The feedhorn-switch system of the technological demonstrator
Abstract
We present the design, manufacturing and performance of the horn-switch system developed for the technological demonstrator of QUBIC (the \& 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.
Keywords
Cite
@article{arxiv.2008.12721,
title = {QUBIC VII: The feedhorn-switch system of the technological demonstrator},
author = {F. Cavaliere and A. Mennella and M. Zannoni and P. Battaglia and E. S. Battistelli and D. Burke and G. D'Alessandro and P. de Bernardis and M. De Petris and C. Franceschet and L. Grandsire and J. -Ch. Hamilton and B. Maffei and E. Manzan and S. Marnieros and S. Masi and C. O'Sullivan and A. Passerini and F. Pezzotta and M. Piat and A. Tartari and S. A. Torchinsky and D. Viganò and F. Voisin and P. Ade and J. G. Alberro and A. Almela and G. Amico and L. H. Arnaldi and D. Auguste and J. Aumont and S. Azzoni and B. Bélier and A. Baù and S. Banfi and D. Bennett and L. Bergé and J. -Ph. Bernard and M. Bersanelli and M. -A. Bigot-Sazy and J. Bonaparte and J. Bonis and E. Bunn and D. Buzi and P. Chanial and C. Chapron and R. Charlassier and A. C. Cobos Cerutti and F. Columbro and A. Coppolecchia and G. De Gasperis and M. De Leo and S. Dheilly and C. Duca and L. Dumoulin and A. Etchegoyen and A. Fasciszewski and L. P. Ferreyro and D. Fracchia and M. Gómez Berisso and M. M. Gamboa Lerena and K. M. Ganga and B. García and M. E. García Redondo and M. Gaspard and D. Gayer and M. Gervasi and M. Giard and V. Gilles and Y. Giraud-Heraud and M. González and M. Gradziel and M. R. Hampel and D. Harari and S. Henrot-Versillé and F. Incardona and E. Jules and J. Kaplan and C. Kristukat and L. Lamagna and S. Loucatos and T. Louis and W. Marty and A. Mattei and A. May and M. McCulloch and L. Mele and D. Melo and L. Montier and L. Mousset and L. M. Mundo and J. A. Murphy and J. D. Murphy and F. Nati and E. Olivieri and C. Oriol and E. Pagana and A. Paiella and F. Pajot and H. Pastoriza and A. Pelosi and C. Perbost and M. Perciballi and F. Piacentini and L. Piccirillo and G. Pisano and M. Platino and G. Polenta and D. Prêle and R. Puddu and D. Rambaud and E. Rasztocky and P. Ringegni and G. E. Romero and J. M. Salum and C. Scóccola and A. Schillaci and S. Scully and S. Spinelli and G. Stankowiak and M. Stolpovskiy and A. D. Supanitsky and J. -P. Thermeau and P. Timbie and M. Tomasi and G. Tucker and C. Tucker and N. Vittorio and F. Wicek and M. Wright and A. Zullo},
journal= {arXiv preprint arXiv:2008.12721},
year = {2022}
}
Comments
30 pages, 28 figures. Accepted for submission to JCAP