Year: 2026
Type: preprint
Abstract: Flux jumps occur in the readout electronics of Transition Edge Sensor (TES) detectors coupled to Superconducting Quantum Interference Devices (SQUIDs), as a consequence of the periodic transfer function of SQUIDs in the superconducting regime. These events manifest as discontinuities in the Time Ordered Data (TOD) and can significantly degrade the quality of the measured signals. In this work, we present an automated pipeline to identify and correct flux jumps in the calibration data of the QUBIC (Q \& U Bolometric Interferometer for Cosmology) instrument, designed to measure the B-mode polarization of the Cosmic Microwave Background (CMB). Using data from multiple observation campaigns, we characterize the statistical properties of flux jumps and compare them with expectations based on the electronic configuration of the instrument. The proposed pipeline successfully corrects these events, allowing the recovery of affected data and enabling their use in subsequent CMB analysis.
Source: arXiv (Cornell University)
Authors: Costanza, Belen, Azzolina, Lucas Merlo, Scoccola, Claudia G., Granese, Nahuel Miron, Battistelli, Elia, Hamilton, Jean-Christophe, Piat, Michel, Prele, Damien, Torchinsky, Steve, Bekkaoui, Ismail, Coppolecchia, Alessandro, De Bernardis, Paolo, Ferazzoli, Sofia, Gervasi, Massimo, Gomez, Luca, Marwede, Sabrina, Masi, Silvia, Moulane, Youssef, Paiella, Alessandro, Regnier, Mathias, Romero, Gustavo, Sanchez, Federico, Queirolo, Ivan
Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, University of Chile, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Roma I, Sapienza University of Rome, Université Paris Cité, Laboratoire AstroParticule et Cosmologie, Université Mohammed VI Polytechnique, University of Milan, National University of General San Martín, Instituto de Tecnologías en Detección y Astropartículas, National University of Ireland, Maynooth, Instituto Argentino de Radioastronomía
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Awards: G4611857396, G4719946153
OpenAlex ID: W7206149732