May 24 – 28, 2021
America/Vancouver timezone

Precise liquid argon drift electron lifetime measurement and calibration with purity monitors for ProtoDUNE-SP LArTPC

May 26, 2021, 7:48 AM
Parallel session talk Sensors: Noble liquid detectors Sensors: Noble liquid detectors


Prof. Jianming Bian (University of California Irvine (US))


DUNE is a next-generation long-baseline neutrino oscillation experiment based on liquid argon TPC (LArTPC) technology. A key component of calibration for LArTPC is the drift electron lifetime in LAr, which corrects the charge attenuation caused by drift electrons captured by impurities. A purity monitor is a miniature TPC that measures the drifting electron lifetime. I will discuss new techniques to significantly improve the charge and electron lifetime measurement of purity monitors at DUNE's prototype detector ProtoDUNE-SP at CERN. The improved charge measurement uncertainty reaches below 1%, which is promising to fulfill the requirement of calibration at DUNE. The purity monitor based electron lifetime measurement has unique importance for DUNE's deep-underground far detector calibration, where the cosmic-ray-based calibration is very challenging due to the low cosmic statistics.

TIPP2020 abstract resubmission? No, this is an entirely new submission.

Primary author

Prof. Jianming Bian (University of California Irvine (US))

Presentation materials