Flux jump correction in the QUBIC TES data pipeline
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.
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BibTeX
@misc{costanza2026flux,
title = {{Flux jump correction in the QUBIC TES data pipeline}},
author = {Belen Costanza and Lucas Merlo Azzolina and Claudia G Scoccola and Nahuel Miron Granese and Elia Battistelli and Jean-Christophe Hamilton and Michel Piat and Damien Prele and Steve Torchinsky and Ismail Bekkaoui and Alessandro Coppolecchia and Paolo de Bernardis and Sofia Ferazzoli and Massimo Gervasi and Luca Gomez and Sabrina Marwede and Silvia Masi and Youssef Moulane and Alessandro Paiella and Mathias Regnier and Gustavo Romero and Federico Sanchez and Ivan Queirolo},
howpublished = {HAL},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.00249},
eprint = {2609.00249},
archivePrefix = {arXiv},
url = {https://hal.science/hal-05741425v1},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Flux jump correction in the QUBIC TES data pipeline
AU - Belen Costanza
AU - Lucas Merlo Azzolina
AU - Claudia G Scoccola
AU - Nahuel Miron Granese
AU - Elia Battistelli
AU - Jean-Christophe Hamilton
AU - Michel Piat
AU - Damien Prele
AU - Steve Torchinsky
AU - Ismail Bekkaoui
AU - Alessandro Coppolecchia
AU - Paolo de Bernardis
AU - Sofia Ferazzoli
AU - Massimo Gervasi
AU - Luca Gomez
AU - Sabrina Marwede
AU - Silvia Masi
AU - Youssef Moulane
AU - Alessandro Paiella
AU - Mathias Regnier
AU - Gustavo Romero
AU - Federico Sanchez
AU - Ivan Queirolo
PY - 2026
DA - 2026/09/01
PB - HAL
DO - 10.48550/arxiv.2609.00249
UR - https://hal.science/hal-05741425v1
AB - 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.
ER -