The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline experiment. The DUNE far detectors are based on liquid argon time projection chamber (LArTPC) technology. The large DUNE far detector single-phase (ProtoDUNE-SP) and dual-phase (ProtoDUNE-DP) LArTPC prototypes at CERN have taken beam and cosmic data in 2018-2020. In this talk, we will discuss the design and the first results of ProtoDUNE’s cryogenic instrumentation aimed towards understanding liquid argon quality and behavior, along with providing input to calibration.
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