Silicon Photomultiplier Validation for DUNE Horizontal Drift Detector Photon Detection System

The Deep Underground Neutrino Experiment (DUNE) is a U.S. flagship long-baseline neutrino experiment, consisting of far detectors at the Sanford Underground Research Facility (SURF) in South Dakota, located 800 miles from the near detectors at Fermilab in Illinois, where the high-intensity neutrino beam will originate. The far detector complex will consist of four monolith Liquid Argon Time Projection Chambers (LArTPCs) that rely on a photon detection system (PDS) based on light collectors coupled to Silicon Photomultipliers (SiPMs) in a cryogenic environment. In this talk, the details of the test activities necessary for validation and selection of the SiPM sensors for the projected first module will be discussed.