Performance of NbSi transition-edge sensors readout with a 128 MUX factor for the QUBIC experiment

作者：B. Bélier, C. Chapron, D. Hoang, S. Maestre, S. Marnieros, W. Marty, Ludovic Montier, Michel Piat, D. Prêle, D. Rambaud, S. Torchinsky, S. Henrot–Versillé, Fabrice Voisin, Giorgio Amico, D. Auguste, J. Aumont, Stefano Banfi, Gustavo Barbarán, P Battaglia, E. S. Battistelli, A. Baù, Laurent Bergé, J.-P. Bernard, Marco Bersanelli, M.-A. Bigot-Sazy, N. Bleurvacq, J. Bonaparte, J. Bonis, Guillaume Bordier, É. Bréelle, Emory F. Bunn, David Burke, D. Buzi, A. Buzzelli, Francesco Cavaliere, P. Chanial, R. Charlassier, F. Columbro, Gabriele Coppi, A. Coppolecchia, F. Couchot, Rocco D’Agostino, G. D’Alessandro, Paolo de Bernardis, G. de Gasperis, M. De Leo, M. De Petris, A. Di Donato, L. Dumoulin, Alberto Etchegoyen, A. Fasciszewski, C. Franceschet, Martin Gamboa, B. Garćıa, X. Garrido, M. Gaspard, A. Gault, D. Gayer, M. Gervasi, Martin Giard, Y. Giraud–Héraud, M. Gómez Berisso, Manuel González, Marcin Gradziel, L. Grandsire, E. Guerrard, J.–Ch. Hamilton, Diego Harari, V. Haynes, Federico Incardona, E. Jules, Jean Kaplan, Andrei Korotkov, C. Kristukat, Luca Lamagna, Sotiris Loucatos, Thibaut Louis, A. E. Lowitz, Vladimir V. Luković, R. Luterstein, B. Maffei, Silvia Masi, Angelo Mattei, Andrew May, M. McCulloch, Maria Clementina Medina, L. Mele, S. J. Melhuish, A. Mennella, L.M. Mundo, J. A. Murphy, Créidhe O’Sullivan, Emiliano Olivieri, A. Paiella, F. Pajot, A. Passerini, H. Pastoriza, Alessandro Pelosi, C. Perbost, O. Perdereau, F. Pezzotta, F. Piacentini, Lucio Piccirillo, G. Pisano, G. Polenta, Roberto Puddu, P. Ringegni, Gustavo E. Romero, A. Schillaci, Claudia G. Scóccola, Stephen Scully, S. Spinelli, Mikhail Stolpovskiy, A. Tartari, Peter Timbie, M. Tristam, V. Truongcanh, C. Tucker, Gregory S. Tucker, S. Vanneste, Daniele Viganò, N. Vittorio, Bob Watson, F. Wicek, M. Zannoni, Antonio Zullo, Jean-Pierre Thermeau, P. A. R. Ade, J.D. Murphy, D. Bennett, Federico Suarez, Maria Salatino · 年份：2018 · DOI：10.1117/12.2312080 · 被引用次数：7 · 研究领域：Superconducting and THz Device Technology、Radio Astronomy Observations and Technology、Pulsars and Gravitational Waves Research

QUBIC (the Q and U Bolometric Interferometer for Cosmology) is a ground-based experiment which seeks to improve the current constraints on the amplitude of primordial gravitational waves. It exploits the unique technique, among Cosmic Microwave Background experiments, of bolometric interferometry, combining together the sensitivity of bolometric detectors with the control of systematic effects typical of interferometers. QUBIC will perform sky observations in polarization, in two frequency bands centered at 150 and 220 GHz, with two kilo-pixel focal plane arrays of NbSi Transition-Edge Sensors (TES) cooled down to 350 mK. A subset of the QUBIC instrument, the so called QUBIC Technological Demonstrator (TD), with a reduced number of detectors with respect to the full instrument, will be deployed and commissioned before the end of 2018. The voltage-biased TES are read out with Time Domain Multiplexing and an unprecedented multiplexing (MUX) factor equal to 128. This MUX factor is reached with two-stage multiplexing: a traditional one exploiting Superconducting QUantum Interference Devices (SQUIDs) at 1K and a novel SiGe Application-Specific Integrated Circuit (ASIC) at 60 K. The former provides a MUX factor of 32, while the latter provides a further 4. Each TES array is composed of 256 detectors and read out with four modules of 32 SQUIDs and two ASICs. A custom software synchronizes and manages the readout and detector operation, while the TES are sampled at 780 Hz (100kHz/128...