First results on ProtoDUNE-SP liquid argon time projection chamber performance from a beam test at the CERN Neutrino Platform
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2020
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The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber
with an active volume of 7.2 × 6.1 × 7.0 m3
. It is installed at the CERN Neutrino Platform in a
specially-constructed beam that delivers charged pions, kaons, protons, muons and electrons with
momenta in the range 0.3 GeV/𝑐 to 7 GeV/𝑐. Beam line instrumentation provides accurate mo mentum measurements and particle identification. The ProtoDUNE-SP detector is a prototype for
the first far detector module of the Deep Underground Neutrino Experiment, and it incorporates
full-size components as designed for that module. This paper describes the beam line, the time
projection chamber, the photon detectors, the cosmic-ray tagger, the signal processing and particle
reconstruction. It presents the first results on ProtoDUNE-SP’s performance, including noise and
gain measurements, 𝑑𝐸/𝑑𝑥 calibration for muons, protons, pions and electrons, drift electron life time measurements, and photon detector noise, signal sensitivity and time resolution measurements.
The measured values meet or exceed the specifications for the DUNE far detector, in several cases
by large margins. ProtoDUNE-SP’s successful operation starting in 2018 and its production of large
samples of high-quality data demonstrate the effectiveness of the single-phase far detector design.
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Large detector systems for particle and astroparticle physics, Time projection Chambers (TPC), Noble liquid detectors (scintillation, ionization, double-phase)
Citação
ABI, B. et al. First results on ProtoDUNE-SP liquid argon time projection chamber performance from a beam test at the CERN Neutrino Platform. Journal of Instrumentation, Bristol, v. 15, e P12004, 2020. DOI 10.1088/1748-0221/15/12/P12004. Disponível em: https://iopscience.iop.org/article/10.1088/1748-0221/15/12/P12004. Acesso em: 16 maio 2023.