Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

Journal article

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6 x 6 x 6 m3 liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the different wavelength shifters, such as PEN and TPB, and the use of Xe-doped LAr, considering its future use in giant LArTPCs. The scintillation light production and propagation processes are analyzed and a comparison of simulation to data is performed, improving understanding of the liquid argon properties

Authors: Abud, AA; Abi, B; Acciarri, R; Acero, MA; Adames, MR

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: SpringerOpen
• Journal: The European Physical Journal C
• Volume: 82
• Issue: 7
• Pages: 618-618
• Article number: 618
• Publication date: 2022-07-16
• DOI: 10.1140/epjc/s10052-022-10549-w
• EISSN: 1434-6052
• ISSN: 1434-6044
• Language: English
• Keywords: Chemistry; Argon; Detector; Atomic physics; Optics; Neutrino; Nuclear physics; Time projection chamber; Scintillation; Analytical Chemistry (journal); Muon; Photomultiplier; Physics