• DOI:10.1088/1475-7516/2022/04/037
• Corpus ID: 231632127

QUBIC IV: Performance of TES bolometers and readout electronics

@article{Piat2021QUBICIP,
  title={QUBIC IV: Performance of TES bolometers and readout electronics},
  author={Michel Piat and Guillaume Stankowiak and Elia Stefano Battistelli and Paolo Bernardis and Giuseppe D' Alessandro and Marco Petris and Laurent Grandsire and John C. Hamilton and Thuong Duc Hoang and S. Marnieros and Silvia Masi and Aniello Mennella and Louise Mousset and Caoimhe O Sullivan and D. PRELE and Andrea Tartari and Jean Pierre Thermeau and Steve A. Torchinsky and Fabrice Voisin and Mario Zannoni and Peter A. R. Ade and Jos{\'e} G. Alberro and Alejandro Almela and Giorgio Amico and L H Arnaldi and Didier Auguste and Jonathan Aumont and S. Azzoni and Stefano Banfi and Benoit Belier and Alessandro Ba{\`u} and David G. Bennett and Laurent Berg{\'e} and J-Ph. Bernard and M. Bersanelli and M.-A. Bigot-Sazy and Juan Jose Bonaparte and Julien Bonis and Emory F. Bunn and David Burke and Daniele Buzi and Francesco Cavaliere and P. Chanial and Claude Chapron and Romain Charlassier and Agust{\'i}n Cobos Cerutti and Fabio Columbro and A. Coppolecchia and G. De Gasperis and Michele De Leo and S. Dheilly and C. Duca and Louis Dumoulin and A. Etchegoyen and A. Fasciszewski and Luciano Pablo Ferreyro and Diego Fracchia and Cristian Franceschet and M. M. Gamboa Lerena and Ken Ganga and Bruce Rafael Mellado Garcia and M. E. Garc'ia Redondo and Michel Gaspard and Donnacha Gayer and M. Gervasi and Martin Giard and V. Gilles and Yannick Giraud-H{\'e}raud and M. Gomez Berisson and M. Gonzalez and Marcin L. Gradziel and Mat'ias Rolf Hampel and Diego D. Harari and S. Henrot-Versill{\'e} and Federico Incardona and Eric Jules and Jean Kaplan and Christian Kristukat and L. Lamagna and S. Loucatos and Thibaut Louis and Bruno Maffei and W. Marty and Angelo Mattei and Andrew J. May and M. Mcculloch and L. Mele and Diego G. Melo and Ludovic Montier and Luis Mariano Mundo and J. Anthony Murphy and J. D. Murphy and Federico Nati and Emiliano Olivieri and Ch. Oriol and Alessandro Paiella and François Pajot and A. G. Passerini and Hern{\'a}n Pastoriza and Alessandro Pelosi and Camille Perbost and Maurizio Perciballi and Federico Pezzotta and Francesco Piacentini and Lucio Piccirillo and Giampaolo Pisano and Manuel Platino and Gianluca Polenta and Roberto Puddu and Damien Rambaud and Emiliano Rasztocky and Pablo Ringegni and Gustavo E. Romero and Japhari Salum and Alessandro Schillaci and Claudia G. Sc{\'o}ccola and Stephen P. Scully and Sebastiano M. Spinelli and Michail Stolpovskiy and Alberto Daniel Supanitsky and Peter T. Timbie and Maurizio Tomasi and C E Tucker and Gregory S. Tucker and Daniele Vigan{\`o} and Nicola Di Vittorio and Francois Wicek and M. Wright and Antonio Zullo},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2022}
}

• M. Piat, G. Stankowiak, +126 authors A. Zullo
• Published 17 January 2021
• Physics
• Journal of Cosmology and Astroparticle Physics

A prototype version of the Q & U bolometric interferometer for cosmology (QUBIC) underwent a campaign of testing in the laboratory at Astroparticle Physics and Cosmology laboratory in Paris (APC). The detection chain is currently made of 256 NbSi transition edge sensors (TES) cooled to 320 mK. The readout system is a 128:1 time domain multiplexing scheme based on 128 SQUIDs cooled at 1 K that are controlled and amplified by a SiGe application specific integrated circuit at 40 K. We report the performance of this readout chain and the characterization of the TES. The readout system has been functionally tested and characterized in the lab and in QUBIC. The low noise amplifier demonstrated a white noise level of 0.3 nV/√Hz. Characterizations of the QUBIC detectors and readout electronics includes the measurement of I-V curves, time constant and the noise equivalent power. The QUBIC TES bolometer array has approximately 80% detectors within operational parameters. It demonstrated a thermal decoupling compatible with a phonon noise of about 5 × 10-17 W/√Hz at 410 mK critical temperature. While still limited by microphonics from the pulse tubes and noise aliasing from readout system, the instrument noise equivalent power is about 2 × 10-16 W/√Hz, enough for the demonstration of bolometric interferometry.