Photon detector system timing performance in the DUNE 35-ton prototype liquid argon time projection chamber
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Data
2018
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Resumo
The 35-ton prototype for the Deep Underground Neutrino Experiment far detector was
a single-phase liquid argon time projection chamber with an integrated photon detector system, all
situated inside a membrane cryostat. The detector took cosmic-ray data for six weeks during the
period of February 1, 2016 to March 12, 2016. The performance of the photon detection system was
checked with these data. An installed photon detector was demonstrated to measure the arrival times
of cosmic-ray muons with a resolution better than 32 ns, limited by the timing of the trigger system.
A measurement of the timing resolution using closely-spaced calibration pulses yielded a resolution
of 15 ns for pulses at a level of 6 photo-electrons. Scintillation light from cosmic-ray muons was
observed to be attenuated with increasing distance with a characteristic length of 155 ± 28 cm.
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Noble liquid detectors (scintillation, ionization, double-phase), Photon detectors for UV, visible and IR photons (solid-state), Neutrino detectors
Citação
ADAMS, D. L. et al. Photon detector system timing performance in the DUNE 35-ton prototype liquid argon time projection chamber. Journal of Instrumentation, Bristol, v. 13, eP06022, 2018. DOI: 10.1088/1748-0221/13/06/P06022. Disponível em: https://iopscience.iop.org/article/10.1088/1748-0221/13/06/P06022/meta. Acesso em: 16 maio 2023.