Photon detector system timing performance in the DUNE 35-ton prototype liquid argon time projection chamber

Abstract

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 $155\pm 28$ cm.

arXiv comment17 pages, 8 figures. Submitted to JINST

References in corpus (8)

• Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report Volume 2: The Physics Program for DUNE at LBNF
• The scintillation of liquid argon
• Fluorescence Efficiency and Visible Re-emission Spectrum of Tetraphenyl Butadiene Films at Extreme Ultraviolet Wavelengths
• Long-Baseline Neutrino Facility (LBNF) and Deep Underground Neutrino Experiment (DUNE) Conceptual Design Report, Volume 4 The DUNE Detectors at LBNF
• The Liquid Argon Purity Demonstrator
• A Novel Use of Light Guides and Wavelength Shifting Plates for the Detection of Scintillation Photons in Large Liquid Argon Detectors
• Scintillation Light from Cosmic-Ray Muons in Liquid Argon
• A Factor of Four Increase in Attenuation Length of Dipped Lightguides for Liquid Argon TPCs Through Improved Coating

Cited by in corpus (4)

• Silicon Photomultipliers in Particle and Nuclear Physics
• Design and performance of a 35-ton liquid argon time projection chamber as a prototype for future very large detectors
• Triangulating Black Hole Forming Stellar Collapses through Neutrinos
• Measuring the Neutrino Event Time in Liquid Argon by a Post-Reconstruction One-parameter Fit