A Light Calibration System for the ProtoDUNE-DP Detector

Abstract

A LED-based fiber calibration system for the ProtoDUNE-Dual Phase (DP) photon detection system (PDS) has been designed and validated. ProtoDUNE-DP is a 6x6x6 m3 liquid argon time-projection-chamber currently being installed at the Neutrino Platform at CERN. The PDS is based on 36 8-inch photomultiplier tubes (PMTs) and will allow triggering on cosmic rays. The system serves as prototype for the PDS of the final DUNE DP far detector in which the PDS also has the function to allow the 3D event reconstruction on non-beam physics. For this purpose an equalized PMT response is desirable to allow using the same threshold definition for all PMT groups, simplifying the determination of the trigger efficiency. The light calibration system described in this paper is developed to provide this and to monitor the PMT performance in-situ.

15 pages, 5 figures

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Cited by in corpus (3)

• ProtoDUNE-DP Light Acquisition and Calibration Software
• Scintillation light detection in the long-drift ProtoDUNE-DP liquid argon TPC
• Scintillation light detection in the 6-m drift length ProtoDUNE Dual Phase liquid argon TPC